calc mL of radiator solution when 197 mL antifreeze is used to make a 25% (v/v) solution

Answers

Answer 1

The volume of the radiator solution formed with the 197 mL of antifreeze is 788 mL.

What is a percentage?

A percentage is given as the respective ratio of the quantity present with respect to others.

The solution of 25% v/v can be depicting the presence of a 25% volume of antifreeze in the radiator solution.

The volume of the radiator solution has 197 mL of antifreeze. The total volume of the solution suppose is x.

25% of x = 197 mL

25/100 * x = 197

x = 788 mL

The volume of the radiator solution formed with 25% v/v antifreeze is 788 mL.

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Related Questions

4. It is desired to prepare 0.5 L of a 0.1 M solution of NaCl
from a 1 M stock solution. How many milliliters of the
stock solution must be taken for the dilution?
5. Calculate the osmotic pressure of a 0.5 M sucrose
solution if the temperature is 298 K.

Answers

4) 0.05 L of the stock solution must be taken.

5) The osmotic pressure would be 12.23 atm

Miscellaneous calculations

4) Using the dilution equation: m1v1=m2v2

   m1 = 1M, m2 = 0.1M, v2 = 0.5L

      v1 = m2v2/m1 = 0.1 x 0.5/1 = 0.05 L

5) Using the formula: osmotic pressure = icRT

 Since sucrose does not ionize in water,  i = 1

  C = 0.5

  R = 0.0821

  T = 298

  Osmotic pressure = 1 x 0.5 x 0.0821 x 298 = 12.23 atm

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Write out the recipe and list all the ingredients (including the measures) of your favorite dish.
Explain how the ingredients in this recipe cause one or more of the listed reactions.

Answers

The recipe for an omelet are:

Ingredients

1 EggSalt and pepper ( 1 tablespoon )Butter ( 1 tablespoon )

Recipe:

Turn on the heat and place a pan on it.Add butter to the pan.Crack the egg and whisk it properly.Add the whisked omelet onto the pan and stir.Add salt and pepper.

How to illustrate the information?

When we turn on the heat and place the pan, a heat transfer takes place and heat transfers from one body to another.

When we add butter to the pan, then the temperature of the pan was more than that of the butter.

Since the melting point of butter was less than the temperature of the pan, the the melting of butter takes place.

When we add the egg, the evaporation of the liquid present in the egg yolk and the egg white takes place.

These are the chemical reactions depicted.

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60.0 kL of hydrogen at SATP (24.8 L/mol) is reacted with excess amount of nitrogen. The resulting
ammonia gas needs to be stored in a gas tank with a volume of 6.25 kL and under 2000 kPa of pressure.
What should the temperature regulator of the gas tank be set at?

Answers

The temperature regulator of the gas tank be set at 842.64 K

What volume of ammonia gas is produced by reacting 60.kL of hydrogen with excess nitrogen at SATP?

The volume of hydrogen ammonia produced is given by the mole ratio of the gases in the equation below:

3 H₂ + N₂ → 2 NH₃

The mole ratio is 2:3

Volume of ammonia produced = 2/3 * 60 kL = 40 kL

The temperature regulator value is determined using the general gas equation:

P₁V₁/T₁ = P₂V₂/T₂

T₂ = P₂V₂T₁/P₁V₁

P₂ = 2000 kPaV₂ = 6.25 kLT₁ = 273.15 KP₁ = 101.3 kPaV₁ = 40 kL

T₂ = (2000 * 6.25 * 273.15)/(101.3 * 40)

T₂ = 842.64 K

The temperature regulator of the gas tank be set at 842.64 K

In conclusion, the general gas equation is useful in determining gas volume, pressure and temperatures.

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5pts. Chemistry multiple choice​

Answers

Answer:

C. Xenon

Explanation:

The question only requires you to use your visual skills to identify the unknown gas. Look at the spectra of unknown gas and xenon, are they not identical? SInce they are same, the unknown sample must be xenon.

C. Xenon // they both look alike

Why is the MO structure of NO+ different than that of N2? (the structure, not the number of electrons)

Answers

N2 is a homonuclear molecule and NO+ is a heteronuclear molecular ion hence the  MO structure of NO+ different than that of N2.

What is the molecular orbital?

The molecular orbital is formed by the combination of atomic orbitals. We should note that the number of molecular orbitals must be equal to the number of combining atomic orbitals.

Now we know that N2 is a homonuclear molecule and NO+ is a heteronuclear molecular ion hence the  MO structure of NO+ different than that of N2.

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How much heat is required to change 35.0 g of water from ice to liquid water?
The following information for water is given, but may or may not be useful:
C = 4.184 J/g°C
AHfus = 334 J/g
AHvap=2260J/g

Answers

Taking into account the definition of calorimetry and latent heat, 11,690 J is required to change 35 g of water from ice to liquid water.

Definition of calorimetry

Calorimetry is the measurement and calculation of the amounts of heat exchanged by a body or a system.

Definition of sensible heat

Sensible heat is defined as the amount of heat that a body absorbs or releases without any changes in its physical state (phase change).

Definition of latent heat

Latent heat is defined as the energy required by a quantity of substance to change state.

When this change consists of changing from a solid to a liquid phase, it is called heat of fusion and when the change occurs from a liquid to a gaseous state, it is called heat of vaporization.

The heat Q that is necessary to provide for a mass m of a certain substance to change phase is equal to

Q = m×L

where L is called the latent heat of the substance and depends on the type of phase change.

Heat to change water from ice to liquid water

In this case, you know:

Q= ?m= 35 gL= ΔHfus= 334 [tex]\frac{J}{g}[/tex] because the change consists of changing from a solid (ice) to a liquid phase (liquid water).

Replacing in the definition of latent heat:

Q = 35 g× 334 [tex]\frac{J}{g}[/tex]

Solving:

Q= 11,690 J

Finally, 11,690 J is required to change 35 g of water from ice to liquid water.

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hat is used and produced in glycoloysis?
1.
2 Pyruvate
2.
2 ATP
a
3.
H2O
4.
4 ATP
5.
2 NADH
b
6.
glucose
a.
produced
b.
used

Answers

During glycolysis is used glucose, ADP and pyruvate and produce ATP, water and NADH.

What is glycolysis?

Glycolysis is the first step of cellular respiration by which glucose is used to generate energy in the form of ATP.

Cellular respiration has three sequential steps, i.e., glycolysis, the Krebs cycle and oxidative phosphorylation.

Glycolysis is the cellular respiration step that generates 2 net high energy ATP molecules and 2 reduced NADH.

In conclusion, glycolysis uses glucose, pyruvate and ADP to generate ATP, water and Nicotinamide adenine dinucleotides (NADH).

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Place a check mark next to each star that is only fusing hydrogen into helium at this time.

Answers

Answer:

star 3

Explanation:

the color determines the fusion in between

Which of the following has eight valence electrons?
o ti4+
CI
Na+
O Kr
O all of the above

Answers

it’s all of the above

Answer:

all of the above

A scientist is working with a new kind of quantum dot to
make a dye. He is applying Newton's laws to the
particle, but it seems to be breaking these laws of
physics.
Which action will most likely help the scientist study
the particle's motion?

Answers

The action that will most likely help the scientist study the particle's motion is that He needs to use quantum mechanics, not Newtonian mechanics because this is a nanotechnology product.

What is Quantum Mechanics?

This refers to the branch of mechanics that has to do with the description of motion and the different concepts of quantization of energy

Hence, we can see that based on the fact that a scientist uses a new quantum dot to make a dye and uses Newton's laws, but he seems to be breaking the laws, so he needs to use quantum mechanics because this is a nanotechnology product.

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Draw a heating curve for 1 mole of methanol beginning at 170K and ending at 350K. Assume that the values given here are constant over the relevant temperature ranges.

Answers

The graph of the heating of methanol has been attached.

The temperature at 170 K is approximately the melting point of methanol.

The temperature at 350 K is approximately the boiling point of methanol.

If we provide heat before 170 K temperature then all the heat provided to the methanol will result in rise in temperature of methanol in solid form.

If we provide heat at 170 K temperature then all the heat provided to the methanol will result in change in physical from of methanol from solid to liquid.

If we provide heat after 170 K temperature and before 350 K temperature then all the heat provided to the methanol will result in rise in temperature of methanol in liquid form.

If we provide heat at 340 K temperature then all the heat provided to the methanol will result in change in physical from of methanol from liquid to gas.

If we provide heat after 350 K temperature then all the heat provided to the methanol will result in rise in temperature of methanol in gas form.

So, the heat given to methanol will rise its temperature except at its Boiling and melting point. At those temperature heat will change the physical form of methanol first. and the graph also have been attached of between boiling point and melting point as given in question  .

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Vehicle air bags require that a very specific amount of gas is created so that the gas inflates the airbag without causing it to rupture.
Commonly, this is accomplished by decomposing sodium azide (NaN3) to produce sodium metal and nitrogen gas. How much sodium azide is required to produce 80.0 g of nitrogen gas?

Answers

The amount of sodium azide required will be 123.72 grams

Stoichiometric problem

From the equation of the reaction below:

[tex]2NaN_3 --- > 2Na + 3N_2[/tex]

The mole ratio of sodium azide to nitrogen gas is 2:3

Mole of 80.0 g nitrogen = 80/28.02 = 2.855 moles

Equivalent mole of sodium azide = 2/3 x 2.855 = 1.903 moles

Mass of 1.903 moles sodium azide = 1.903 x 65 = 123.72 grams

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What’s the correct answer answer asap for brainlist

Answers

The equator runs through the middle of Africa!

The sparse area surrounding a spiral galaxy is called its

Answers

Answer:

Halo

Explanation:

4Al(s) + 30₂(g) → 2Al2O3 (s)
How many molecules of O₂ are used in the reaction?
How many oxygen atoms are required?
How many moles of Al2O3 are formed?
What is the mole ratio of Al to O₂?

Answers

1) 1 molecules
2) 2 oxygen atoms
3)2 moles of Al2O3 are formed
4)4:3

How many formula units are in 239.2g of
Br2
MgCl2
H2O
Fe

Answers

The formula units in the substances are as follows:

Br2 = 8.99 × 10^23 formula unitsMgCl2 = 1.51 × 10^24 formula unitsH2O = 2.57 × 10^24 formula unitsFe = 2.57 × 10^24 formula units

How many moles are in 239.2 g of the given substances?

The moles of the substances are determined from their molar mass.

Molar mass of the substances is given as follows:

Br2 = 160 g/molMgCl2 = 95 g/molH2O = 18 g/molFe = 56 g/mol

Formula units = mass/molar mass × 6.02 × 10^23

The formula units in the substances are as follows:

Br2 = 239.2/160 × 6.02 × 10^23 = 8.99 × 10^23 formula unitsMgCl2 = 239.2/95 × 6.02 × 10^23 = 1.51 × 10^24 formula unitsH2O = 239.2/18 × 6.02 × 10^23 = 2.57 × 10^24 formula unitsFe = 239.2/56 × 6.02 × 10^23 = 2.57 × 10^24 formula units

In conclusion, the number of formula units is derived from the moles and Avogadro number.

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A scientist observes that the electrical resistance of a subconducting material drafts to zero when the material is cool to very low temperatures which is the following statements best describes what the scientist is observing

Answers

The statement that describes what the scientist is observing is; "the scientist is observing an intensive property of a superconductor."

What is electrical resistance?

The term electrical resistance refers to the opposition that is offered to the flow of  current. We know that a superconductor is one whose electrical resistance drops to zero when it s cooled to the absolute zero.

Hence, the statement that describes what the scientist is observing is; "the scientist is observing an intensive property of a superconductor."

Missing parts:

A scientist observes that the electrical resistance of a superconducting material drops to zero when the material is cooled to very low temperatures. Which of the following statements best describes what the scientist is observing?

The scientist is observing the electrical power of a superconductor.

The scientist is observing the temperature of a superconductor.

The scientist is observing an intensive property of a superconductor.

The scientist is observing an extensive property of a superconductor

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What is Lewis symbol for K+

Answers

Lewis symbol for K+ is given by a dot and K.

Meaning of Lewis symbol

Lewis symbols can be defined as a symbol the is used in describing the valence electron configurations of an atom ions.

A Lewis symbol consists of the symbol of the element and then surrounded by one dot for each of its valence electrons.

In conclusion, Lewis symbol for K+ is given by a dot and K.

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how do biotic components interact with abiotic components? explain with example.

Answers

Answer:

An ecosystem is defined by the interactions between the living and non-living things in any given area. Abiotic factors are the non-living components of an ecosystem. These include: air water, wind, soil, temperature, sunlight. One of the most critical interactions in an ecosystem between the biotic and abiotic environment is photosynthesis , the base chemical reaction that drives most life on earth. Plants and algae use sunlight, water and carbon dioxide to create the energy they need to grow and live via photosynthesis.

There are four main types of species interactions that occur between organisms in an ecosystem:

Predation , parasitism and herbivory – In these interactions, one organism benefits while the other is negatively affected.

* Competition – Both organisms are negatively affected in some way due to their interactions.

* Commensalism – One organism benefits while the other is neither harmed nor gains.

* Mutualism – Both organisms benefit from their interactions.

Plants with bird or butterfly pollinators are good examples of mutualistic interactions. Plants benefit by having their flowers pollinated so they can reproduce.

what are the relevant equations for oxidation and reduction

Answers

Answer:

There are many equations for oxidation and reduction, but the most relevant ones are the equations for the half-reactions. In general, the equation for oxidation is:

Oxidation: Reducing Agent + O2 → Oxidizing Agent

And the equation for reduction is:

Reduction: Oxidizing Agent + e- → Reducing Agent

These equations show the transfer of electrons that occurs during oxidation and reduction.

Explanation:

How many kilograms of NH3 are needed to produce 120 of pf3 if the reaction has 78.1% yield.

Answers

99.25 grams = .09925 Kg of fluorine gas is needed.

What are moles?

A mole is defined as 6.02214076 × [tex]10^{23}[/tex]of some chemical unit, be it atoms, molecules, ions, or others. The mole is a convenient unit to use because of the great number of atoms, molecules, or others in any substance.

Balanced chemical reaction: P₄ (s) + 6F₂ (g) → 4PF₃ (g).

m(PF₃) = 120.0 g; mass of phosphorus trifluoride.

n(PF₃) = m(PF₃) ÷ M(PF₃).

n(PF₃) = 120 g ÷ 88 g/mol.

n(PF₃) = 1.36 mol.

From chemical reaction: n(PF₃) : n(F₂) = 4 : 6 (2 : 3).

n(F₂) = 1.36 mol · 3 / 2.

n(F₂) = 2.04 mol; amount of substance.

m(F₂) = n(F₂) · M(F₂).

m(F₂) = 2.04 mol · 38 g/mol.

m(F₂) = 77.52 g ÷ 0.781.

m(F₂) = 99.25 g.

Hence, 99.25 grams = .09925 Kg of fluorine gas is needed.

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what are correct statements about all greenhouse gases? check all that apply.

Answers

The correct statements about all greenhouse gases include the following:

They interact with wavelengths shorter than IR to produce IR. Their absorption spectra will show absorbance in the 400-700 nm region. What is greenhouse gas?

These are gases which are found in the atmosphere and have varying effects on the energy present on earth.

Examples include carbon dioxide, methane etc and their characteristics are mentioned above.

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how does resistance change with temperature? is there more resistance or less resistance at higher temperatures?

Answers

The resistance has a linear relationship with temperature because it increases as temperatures increases.

What is temperature?

Temperature refers to the activity (motion or thermal energy) in the atoms that form molecules.

The resistance of an electric conductor increases as the temperature increases since the thermal energy of subatomic electrons also increases.

In conclusion, the resistance has a linear relationship with temperature because it increases as temperatures increases.

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What is the conjugate base of CO3-2

Answers

The conjugate base of CO3-2 is hydrogen carbonate.

Meaning of Conjugate base

A conjugate base can be defined as a base that can be derived from another base by the reason of it loosing or gaining an electron.

Conjugate base are very similar because they both posses the same elements.

In conclusion, The conjugate base of CO3-2 is hydrogen carbonate.

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How can we prevent land pollution?​

Answers

Answer:

1. Make people aware about the concept of Reduce, Recycle and Reuse.

2. Reduce the use of pesticides and fertilizers in agricultural activities.

3. Avoid buying packages items as they will lead to garbage and end up in landfill site.

4. Ensure that you do not litter on the ground and do proper disposal of garbage.

5. Buy biodegradable products.

6. Do organic gardening and eat organic food that will be grown without the use of pesticides.

7. Create dumping ground away from residential areas.

I hope it helps u

It takes 5.4 kJ to vaporize 1.6 moles of substance Z. What is the molar heat of vaporization of substance Z? Give your answer in units of kJ/mol with correct significant figures.

Answers

The molar heat of vaporization of substance Z is 3.375 kJ/mol.

Molar heat of vaporization of substance Z

The molar heat of vaporization of substance Z is calculated as follows;

ΔH(vap) = E/n

where;

E is the energy requiredn is number of moles

ΔH(vap) = 5.4 kJ/1.6

ΔH(vap) = 3.375 kJ/mol

Thus, the molar heat of vaporization of substance Z is 3.375 kJ/mol.

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How many atoms are present in 8.78 grams O2?

Answers

Moles of O_2

Given mass/Molar mass8.78/320.27mol

No of atoms

No of moles×Avagadro no0.27×6.023×10²³1.6×10²³atoms

Note the formula

[tex]\boxed{\sf No\:of\:atoms=No\:of\:moles\times Avagadro\:no}[/tex]

Find no of moles

[tex]\\ \tt{:}\dashrightarrow \dfrac{8.78g}{32g/mol}[/tex]

[tex]\\ \tt{:}\dashrightarrow 0.27mol[tex]

No of atoms

[tex]\\ \tt{:}\dashrightarrow 0.27\times 6.023\times 10^{23}[/tex]

[tex]\\ \tt{:}\dashrightarrow 1.6\times 10^{23}atoms[/tex]

What will the cleaning sanitation and storage of food contact surfaces of equipment and utensils help prevent?

Answers

Proper cleaning and sanitizing practices are critical in preventing bacteria that can cause foodborne illness.

Benefits of sanitizing:

Eliminates Pathogens.

Sanitizing Improves Home Odor.

Reduces Respiratory issues.

Decreases Allergy Flare-Ups.

Easy to Use.

Reduces Stress.

Helps the Immune System.

When and how to clean surfaces in your home.

Important to clean and sanitize kitchen premises

Cleaning your kitchen premises and equipment ensures that clean food preparation is carried out in order to improve kitchen efficiency and reduce environmental impacts.

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what are the rules guiding iupac nomenclature?​

Answers

Rules of iupac nomenclature are :-

Find and name the longest continuous carbon chain.

Identify and name groups attached to this chain.

Number the chain consecutively, starting at the end nearest a substituent group.

Designate the location of each substituent group by an appropriate number and name.

Explanation:

Hope it helps you!!

Sulfuryl chloride, SO2Cl2(g), decomposes at high temperature to form SO2(g) and
Cl2(g). The rate constant at a certain temperature is 4.68 x 10-5s-1. What is the the order of the reaction?
A) zero
B) first
C) second
D) third
E) More information is needed to determine the order.

Answers

The rate constant is s-1 which is the unit of first order reaction rate constant thus the reaction is a first order reaction. Option B

What is the rate of reaction?

The term rate of reaction refers to how fast or slow a reaction proceeds a reaction could be;

First orderSecond order or Third order

We can know the order of reaction here by looking at the unit of the rate constant. The rate constant is s-1 which is the unit of first order reaction rate constant thus the reaction is a first order reaction.

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Other Questions
In the Channel Islands Ecosystem described in this lesson, which of the organisms would youdescribe as the keystone species? Provide evidence from the information above and scientificreasoning from the ideas you learned throughout the unit. Marjorie manages a 200-seat, white-tablecloth restaurant in an upscale neighborhood. Since her guests expect her tablecloths and napkins to be really white, she sends her linens to a local laundry service daily. The laundry service charges her by the piece. She wants to keep track of her laundry cost per guest to see if she can use the information to control her laundry costs better. Help her complete her six-column cost per guest report. She has budgeted $0.60 per guest on average.Six-Column -Laundry Service Unit Name: Marjorie's Date: 5/1-5/7 Laundry Service Number of Guests Cost per Guest Cost Served Weekday Today To Date Today To Date Todat To Date1 $225 400 2 204 375 3 200 350 4 240 425 5 275 450 5 300 500 6 230 420 Total How is she doing at controlling her laundry costs? 20 + 15 = ? Help me!! What is the volume of the following rectangular prism? Volume ==equals units^3 3 in two to three sentences, explain what the grandfather symbolizes in the poem "Old Man". be sure to discuss what he represents Which are characteristics of epithelial cells? Select two options. When done well, __________ is true dialogue between two committed people engaged in joint problem solving 5. Sally took money from her bank account to goout of town for an audition. She spent $54.00for a round-trip ticket and 1/2 of the remainingmoney for her hotel bill. She spent $7.90 forfood and arrived home with $15.10. How muchmoney did Sally take from her bank account? How was the roman empires military over expand? In recent decades, Americans have increased their purchase of stocks of foreign-based companies. The Americans who have bought these stocks were engaged in a. indirect domestic investment. b. foreign portfolio investment. c. foreign direct investment. d. foreign indirect investment. How does the energy move from organism to organism in the food chain (who eats who)? Which is a true statement about an exterior angle of a triangle? A. It is formed by two segments that are not sides of the triangle.B. It is formed by two segments that are sides of the triangle.C. It forms a linear pair with one of the interior angles of the triangle.D. It is complementary to one of the interior angles of the triangle.SUBMIT Which of the following examples illustrates ordinal numbers?A. Marie counted the number of chips on her plate and said, " I have eight".B. Gracie told Bradly she would be the first one to go down the slide.C. Bennett said he had more blocks than anyone. When researching evidence to develop a claim, which are credible sources for a blogger to use? Select four answer options. If 4^3a/8^b=1, what is a/b?A. 1/3B. 1/2C. 3/4D. 4/3 European instruments such as the lute and guitar originally came from a. sub-saharan Africa b. the Americas c. Spain d. the Middle East Dr. Jones office has purchased the above equipment. It is now Year #2 and there is a $7,000 annual maintenance fee that needs to be added to the costs of the equipment. The variable cost is now $3.37 per study, but Dr. Jones office is planning on doing 1675 studies because there has been an addition of two new managed contracts, and there has been a reimbursement increase to $53.16. MHow should a reader analyze indirect characterization? Select four options.O by noticing adjectives that provide details describing the characterO by noticing how the character interacts with other charactersO by noticing details about what the character says, does, and thinksO by noticing how the other characters perceive the characterO by noticing the context, and use it to make inferences about the characterO by noticing statements the narrator makes about the character's personality0 by noticing statements the narrator makes about the character's appearance Rather than using threats, interest groups tend to influence lawmakers by providing them with ______. Selling firms determine which go-to-market strategy to use for each customer based on certain factors. One such factor that pertains to the estimated value of a customer over the lifetime of the customer's relationship with a seller is called _____.