what is the ph of a solution prepared by mixing 51.97 ml of 0.8936 m hcl and 46.07 ml of 0.8124 m naoh? please note that the starting values in the problem all have 4 significant figures. depending upon the randomization and how many sig figs are lost during subtraction, there may be more significant figures than students typically input for similar problems.

Answers

Answer 1

And the result is 3.31. That is the solution's ph. After it is solved, p equals 2.3. This concludes the response.

The following reaction occurs in the solution:

NaOH+HCl→NaCl+H2O.

pOH=−log(0. 0070)=2. 15.

pH=14−2. 15=11. 85.

A solution's pH, which measures the hydrogen ion concentration, can be used to assess how acidic it is. Hydrogen and hydroxyl (OH) ions make up nearly equal proportions of the ions formed when pure water is gently separated. [H+] is 107 for a neutral solution, or pH = 7.

How does pH work?

The common logarithm of the reciprocal of the concentration of hydrogen ions in moles per cubic decimeter of solution serves as the potential of hydrogen, which measures the acidity or alkalinity of a solution. A pH of 7 refers to pure water, a pH of less than 7 to acid solutions, and a pH of more than 7 to alkaline solutions.

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Related Questions

A 1.2 M solution of a weak base B is prepared. Using a pH meter, the pH is measured to be 11.82. Calculate the base ionization constant

Answers

Answer:

Kb = 3.64x10⁻⁵

Explanation:

First we calculate the pOH of the solution:

pOH = 14 - pHpOH = 2.18

Then we calculate [OH⁻]:

pOH = -log[OH⁻][OH⁻] = [tex]10^{-pOH}[/tex][OH⁻] = 0.0066 M

For a weak base solution with a relatively high concentration, we can use the following formula:

[OH⁻] = [tex]\sqrt{Kb*C}[/tex]

Where C is the concentration of the weak base solution (1.2 M in this case).

With the formula above we can calculate Kb:

0.0066  = [tex]\sqrt{Kb*1.2}[/tex]Kb = 3.64x10⁻⁵

Pick 1 answer, please help!

Answers

Answer:

B

Explanation:

Answer:   D

Explanation:  no explanation just D

What’s the answer please give me the answer

Answers

Answer:

replication

:D

Cualquier liquido a 25°C de temperatura y al nivel del mar a) adquiere una forma y volumen definido b) posee la forma del recipiente que lo contiene y ocupa un volumen constante c) no tiene forma ni volumen definidos d) tiene estructura cristalina

Answers

Answer:

b) posee la forma del recipiente que lo contiene y ocupa un volumen constante

Explanation:

Hay tres estados de la materia;

Sólido

Líquido

Gas

En estado líquido, la materia no tiene forma ni volumen definidos. Esto implica que la materia adquiere la forma del recipiente en el que se encuentra.

El líquido tiene un volumen definido. No ocupa el volumen del envase.

More about this source textSource text required for additional translation information

1. The largest particles that a stream deposits as it enters a pond are 8 centimeters in diameter. The
minimum velocity of the stream is approximately
1) 100 cm/sec 2) 200 cm/sec 3) 300 cm/sec 4) 400 cm/sec

Answers

Don’t click on the link it’s a scam

do weight loss Subliminals work?

Answers

Answer:

Some early research suggests that subliminal messages may influence food- and diet-related thoughts and behaviors. However, other research has found that subliminal messages with weight loss cues have no effect.

Explanation:

Adi loves the smell of lavender, so she decides to press a few petals of the flower until they release a few drops of oil. She wants to determine the molecular weight of the oily substance to try to identify the fragrance she likes so much. Her lab instructor tells her that her experiment will not work. Why do you think it will not work?

Answers

Answer:

See Explanation

Explanation:

What Adi failed to realize is that the oily substance that was obtained from lavender consists of a mixture of substances. It is not only the required  fragrance that is present in the extract.

This experiment will not work because those other components in the mixture may be erroneously identified when they show up in the mass spectrum of the extract and may be mistaken for the fragrance in question.

Hence the experiment will not work because; if some kind of separation method is not used to identify other impurities in the oil, many other substances may be mistaken for the actual fragrance.

Thermal energy is measurement of what type of molecular energy? *

Answers

Answer:

Kinetic energy!

Explanation:

It measures the average kinetic energy of the molecules of a substance in degrees Fahrenheit (F) or Celsius (C).

Have a good day!!

I’d appreciate any help

Answers

Answer:

27 g

Explanation:

From the question,

n = Mv...................... Equation 1

Where n = number of mole of Al₂SO₄,  M = Molarity of Al₂SO₄, v = Volume of the solution.

Given: M = 0.12 mol/L, v = 1.5 L.

Substitute these values into equation 1

n = 0.12×1.5

n = 0.18 mol

Also,

n = Mass(m)/Molar mass (m')

n = m/m'.

m = n×m'......................... Equation 2

Given: The molar mass of Al₂SO₄ = (27×2)+32+(16×4) = 150 g/mol

Substitute into equation 2

m = 0.18×150

m = 27 g

In at least 4 complete sentences, describe the similarities and differences between Avogadro's Law and Charles' Law.

Answers

answer

Avogadro's law states that, at constant temperature and pressure, the volume of a gas is directly proportional to the number of moles present. In other words, equal volumes of gases at the same pressure and temperature contain the same number of molecules - this is true regardless of their physical properties or chemical nature.

This number of molecules is

6.022

10

23

and is known as Avogadro's number,

N

A

.

Matematically, Avogadro's law can be written like this

V

n

=

c

o

n

s

t

, or, better yet,

V

1

n

1

=

V

2

n

2

.

Avogadro's law, as well as Boyle's law and Charles' law, are special cases of the ideal gas law,

P

V

=

n

R

T

. If temperature and pressure are kept constant, and knowing that

R

is of course constant, then

P

V

=

n

R

T

P

V

n

=

R

T

V

n

=

R

T

P

=

c

o

n

s

t

, which represents Avogadro's law.

The ideal gas law can also be written to incorporate

N

A

, since the number of moles are actually the number of molecules divided by Avogadro's number

P

V

=

N

N

A

R

T

, where

N

represents the number of molecules.

where are human cells located (in living organisms)

Answers

all inside and out in the human body

1. Newton’s second law of motion describes the relationship between force, mass, and acceleration. Write the equation.

Answers

Answer:

F=ma where F = force in N, m = mass in g and a = acceleration in [tex]m/s^{2}[/tex]

___ SeCl6 + ___ O2 --> ___ SeO2 + ___ Cl2

What is the balanced equation for these reactions?

I give Brainliest! Please no links

Answers

Answer:

SeCl₆ + O₂ → SeO₂ + 3Cl₂

Explanation:

Unbalanced:

SeCl₆ + O₂ → SeO₂ + Cl₂

Count the atoms.

On the left side, we have 1 Se atom, 6 Cl atoms, and 2 O atoms.

On the right side, we have 1 Se atom, 2 O atoms, and 2 Cl atoms.

So everything is balanced except for Cl. To balance, we put a 3 coefficient in front of Cl₂.

SeCl₆ + O₂ → SeO₂ + 3Cl₂

c:

An experiment was conducted to see which metal pot would be better for cooking food quickly. The table below shows how quickly small pieces of wax melted during the experiment.

Type of metal
Time for the wax to melt (seconds)
Aluminum
27
Bronze
45
Copper
15
Steel
80

The following statement was made after the data were examined: “Copper pots are the best pots for cooking food quickly.” Which term best describes this statement?
conclusion
hypothesis
procedure
result

Answers

Answer:

Conclusion.....hope this helps

Answer:

conclusion

Explanation:

The importance of improving soil usage FULL SENTENCES 50 POINTS HELP PLEASE

Answers

Improving soil usage is important because healthy soil helps turn dead matter and minerals into plant nutrients , Improving soil usage helps as a protection against droughts
brainliest plz

56.8 grams of glucose is dissolved in acetic acid. The boiling point of the acetic acid raises to 126.6°C. What is the molal concentration of the solution?

Answers

Answer:

Molal concentration of glucose = 2.64 m

Explanation:

The excersise can be solved by the formula for colligative property, elevation of boiling point.

ΔT = Kb . m . i

As glucose (C₆H₁₂O₆) is an organic compound, i = 1. (No ions generated)

ΔT = Boiling T° for solution - Boiling T° of pure solvent

Kb = Ebulloscopic constant.

We need data from acetic acid.

Boiling T° of pure solvent: 118.1°C

Kb = 3.22 °C/m

We replace data:

126.6°C - 118.1°C = 3.22°C/m . m . 1

(126.6°C - 118.1°C) / 3.22 m/°C = m

Molality = 2.64 mol/kg

Which of the following accurately describes the orbital path of most planets in our solar system?

The orbital path is in a perfect circle.

The orbital path looks circular.

The orbital path is in a large elliptical shape.

The orbital path varies greatly from planet to planet.

Answers

It is in a large elliptical shape!

How is a sound wave transmitted? Please help me I have a test.

Answers

Answer: energy is transferred through vibration of air particles or particles of a solid through which the sound travels.

Answer:

Sound is transmitted by vibrating a object and the waves move through particles.

Explanation:

Can the solubility rules be used to find the state of any compound?

Answers

Answer:

yes

Explanation:

solubility rules allow prediction of what products will be insoluble in water.

How are the testes and the ovaries similar?

They are part of the human skeleton.
They are reproductive organs.
They are sensory organs.
They produce sperm.

Answers

They are reproductive organs
I think it is “they are reproductive organs

Can rotation and revolution occur at the same time? Explain.

Answers

Answer:

yes

Explanation:

Revolution is the movement of an object around another object. So, Earth revolves around the Sun, and the Moon revolves around Earth. At the same time, Earth and the Moon are also rotating. Earth's rate of revolution is about 365 days (one year), and its rate of rotation is about 24 hours (one day).

Match these items.
No links please!

Definitions:
1. Built the first American A.C. generator.
2. Found a relationship between electricity and magnetism.
3. Associated with gas and oil.
4. First workable electric light bulb.
5. Developed the equations E=mc^2
6. Provides majority of the energy in the United States.
7. Splitting heavy atoms
8. Produces plutonium
9. Powered by falling water or stream pressure
10. Thin silicon slices
11. Using heat from the earth

Term names:
a. Oersted
b. Geothermal
c. Edison
d. Einstein
e. Salt dome
f. Turbine
g. Fission
h. Westinghouse
i. Solar cells
j. Gas and oil
k. Breeder

Answers

[tex]\huge{\mathbb{\tt { QUESTION↓}}}[/tex]

1. Built the first American A.C. generator.

2. Found a relationship between electricity and magnetism.

3. Associated with gas and oil.

4. First workable electric light bulb.

5. Developed the equations E=mc^2

6. Provides majority of the energy in the United States.

7. Splitting heavy atoms

8. Produces plutonium

9. Powered by falling water or stream pressure

10. Thin silicon slices

11. Using heat from the earth

[tex]\huge{\mathbb{\tt {ANSWER↓}}}[/tex]

[tex]\color{black}{\tt {1.) \: h. \: Westing \: house}}[/tex]

Built the first American A.C. generator

[tex]\color{black}{\tt {2.) \: Oersted}}[/tex]

Hans Christian Oersted discovered the relationship between electricity and magnetism in 1820.

[tex]\color{black}{\tt {3.) \: j. Gas \: and \: oil}}[/tex]

Associated gas refers to the natural gas found in association with oil within the reservoir. There are also reservoirs that contain only natural gas and no oil, this gas is termed non-associated gas.

[tex]\color{black}{\tt {4.) \: c.Edison}}[/tex]

By January 1879, at his laboratory in Menlo Park, New Jersey, Edison had built his first high resistance, incandescent electric light. It worked by passing electricity through a thin platinum filament in the glass vacuum bulb, which delayed the filament from melting. Still, the lamp only burned for a few short hours.

[tex]\color{black}{\tt { 5.) \: d. Einstein}}[/tex]

E = mc2, equation in German-born physicist Albert Einstein's theory of special relativity that expresses the fact that mass and energy are the same physical entity and can be changed into each other.

[tex]\color{black}{\tt {6.)i.solar cells}}[/tex]

Energy Sources in the United StatesPetroleum (crude oil and natural gas plant liquids): 28% Coal: 17.8% Renewable energy: 12.7% Nuclear electric power: 9.6%"

[tex]\color{black}{\tt { 7.) \: g. fission}}[/tex]

Nuclear fission is a process by which the nucleus of an atom is split into two or more smaller nuclei, known as fission products. The fission of heavy elements is an exothermic reaction, and huge amounts of energy are released in the process.

[tex]\color{black}{\tt { 8.) Sorry \: but \: I \: don't \: know \: the \: answer}}[/tex]

[tex]\color{black}{\tt { 9.) Sorry \: but \: i \: don't \: know \: the \: answer}}[/tex]

[tex]\color{black}{\tt { 10. ) \: Sorry \: \: But \: I \: don't \: know \: the \: answer }} [/tex]

[tex]\color{black}{\tt {11.) \: b. Geothermal}}[/tex]

Geothermal/GSHP systems take advantage of nature's underground temperatures by exchanging heat with the earth using an underground network of water (or refrigerant) filled pipes. In the winter, the liquid pulls heat from the ground and transfers it to the house through an exchanger.

#CarryOnLearning

#LetsEnjoyTheSummer

→XxKim02xX

how humans can improve the negative aspects of soil use FULL SENTENCES 50 POINTS PLEASE HELP

Answers

Answer:

Using diverse nutrient sources can help maintain soil health. Manure and compost add organic matter as well as an array of nutrients, but using just compost or manure to meet the nitrogen needs of the crop every year can result in excessive phosphorus levels in the soil.

How many moles of KClO3 are needed to produce 480 grams of O2?

Answers

Answer:

2:3

You'd need 33.3 moles of potassium chlorate, KClO3 , to produce that much oxygen. Notice that you have a 2:3. mole ratio between potassium chlorate and oxygen gas, which means that, regardless of how many moles of the former react, you'll always produce 3/2 times more moles of the latter.

Explanation:

the answer has to be 3 to 5 sentences for me to get full credit. ❤❤​

Answers

The periodic table is an important but rather dry scientific tool. It lists all the chemical elements, ordered by their atomic numbers. Elements with similar behavior are grouped in the same column (called a group), with metals generally on the left and non-metals (gases) on the right. Rows are called “periods” - hence, periodic table.


Is this what you looking for ???

How is energy from grass passed on between animals

Answers

Answer:

its nuber 3

wdPDAPS

Explanation:

I have a Helium party balloon that can hold 3.0 liters of gas. If I blow up this balloon with 0.10 moles of oxygen gas at a pressure of 1.0 atmosphere, what is the temperature of the balloon?

Answers

Answer:

I am not yet sure on my answer

I would not want to give you wrong answers

Sorry

can anyone help me with this question please! asap

Answers

Answer:

The correct answer to that question is glaciers, waves, wind.

Answer:

I think it is D but I could be wrong.

Explanation:

How to Convert 0.75g of nitrogen gas (N2) to liters.

Answers

24

N2=22.4 liters

18g=22.4 litters

18÷.75=24

when copper wires are made, a copper rod is pulled into a narrower wire. Explain how metallic bonding allows this to happen

Answers

Answer:

possibly because of the malleability of metals

Explanation:

In metallic bonding, electrons are delocalized and move freely among nuclei. When a force is exerted n the metal, the nuclei shift, but the bonds do not break, giving metals their characteristic malleability.

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Please help I will give brainliest What is found in viruses but not cells? Which of the statements below describe the goals and principles of cash management? (Check all that apply.)Multiple select question.Plan cash receipts to meet cash payments when due.Excess cash should be kept on hand to pay bills.Keep a minimum level of cash necessary to operate.Money should be spent only when it is available.Encourage quick payment of liabilities.Encourage quick collection of receivables. A regression table mainly shows us Select one: a. How we should run the regression analysis.b. what the coefficients values are, and whether each coefficient is significant (likely to be different from from 0)c. that the smallest coefficients always have the greatest impact on the dependent variable.d. if a large constant term is important.e. all of the above. Who qualifies for SSS partial disability? Categorize the domestic policies under President George W. Bush. Drag each component to its policy goal.stimulating economic growth or recoveryclosing education achievement gap- bailouts- No Child Left Behind- tax cuts- vouchers What is Zinn's thesis for pages for the first half of the chapter? How was iambic pentameter used in Shakespeare's plays? if a student in the simulation never eats or drinks anything from the buffet table, is it possible for them to become sick with the foodborne disease? explain. What does the speaker mean by something there is that doesn't love a wall? a city is debating whether or not to build a new park. the city owns the land, having purchased it 50 years ago for $25,000. a local restaurant developer has offered $700,000 for the land. the development costs for the park would be $100,000. what is the minimum amount of the benefits for the park development in order to be rational for the city? What is the most important thing that a writer should remember in writing counterclaims? What is the motion of billiards ball? What is ironic about the way Beowulf kills Grendel's mother? What are the 4 properties of a triangle? What economic effect did Southern slavery have on the North? Select all of the following equation(s) that are quadratic in form. x4 6x2 27 = 0 3x4 = 2x 2(x + 5)4 + 2x2 + 5 = 0 6(2x + 4)2 = (2x + 4) + 2 6x4 = -x2 + 5 8x4 + 2x2 4x = 0 Darnell rents some tables for $362 and some chairs for $3 each for a party. He spends a total of $500. Use the following graph to answer the next question.The horizontal axis is labeled quantity of money and from left to right lists labels as Q3, Q1, and Q2. The vertical axis is labeled rate of interest (percent). Three decreasing lines labeled Dm3, Dm1, and Dm2 intersect three parallel lines from Q3, Q1, and Q2 at the horizontal axis, labeled from left to right as Sm3, Sm1, and Sm2. The points of intersection of all the curves are marked as follows. Sm1 and Dm1 is marked as A. Sm3 and Dm1 is marked as B. Sm1 and Dm2 is marked as C. Sm2 and Dm2 is marked as D. Sm3 and Dm3 is marked as E. Sm1 and Dm3 is marked as F. Sm2 and Dm1 is marked as G. Sm2 and Dm3 is marked as H. Sm3 and Dm2 is marked as I.The graph shows the supply and demand for money where Dm1, Dm2, and Dm3 represent different demands for money and Sm1, Sm2, and Sm3 represent different levels of the money supply. The initial equilibrium point is A. What will be the new equilibrium point following an autonomous increase in the asset demand for money? Why would someone use a credit card to purchase goods?