What is the specific heat of a metal if 17.5 g metal has a temperature increase of 26.8 °C when 570.4J of energy are added to it?

Answers

Answer 1

Answer:

1.22 J/g.°C

Explanation:

Step 1: Given data

Mass of the metal (m): 17.5 gTemperature increase (ΔT): 26.8 °CAdded energy (Q): 570.4 J

Step 2: Calculate the specific heat of the metal (c)

A metal absorbs heat and, as a consequence, its temperature increases. We can calculate its specific heat using the following expression.

c = Q / m × ΔT

c = 570.4 J / 17.5 g × 26.8 °C = 1.22 J/g.°C


Related Questions

If atoms are electrically neutral then how do they form bonds?​

Answers

Answer:

The nucleus contains neutrons and protons; protons carry the positive charge. The shells contain electrons which carry the negative charge. So, how can the atom be changed. ... Covalent bonds are electrically neutral because they are not formed due to the transfer of electrons but sharing of electrons.

Explanation:

Hope it helps ^-^

#CarryOnLearning

Answer:

When an atom has an equal number of electrons and protons, it has an equal number of negative electric charges (the electrons) and positive electric charges (the protons). The total electric charge of the atom is therefore zero and the atom is said to be neutral. ... Chemically, we say that the atoms have formed bonds

What is baking soda chemically known as ? Excessive use of chemical
fertilizer is not good. Justify.​

Answers

Answer:

Baking Soda is NaHCO3 ---Sodium hydrogen Carbonate

Excessive use of Fertilizer can cause plants to develop shallow root systems,Decrease soil fertility and reduce Quality of Crops.

Answer:

Sodium bicarbonate, also called sodium hydrogen carbonate, or bicarbonate of soda,  is a source of carbon dioxide and so is used as an ingredient in baking powders, in effervescent salts and beverages, and as the main constituent of dry-chemical fire extinguishers.

Explanation:

I need help with my chemistry but you can oonly choose one option​

Answers

Answer:

well it is an Synthesis reaction

Explanation:

in the view of the fact that a sodium metal .."Sodium" reacts with an "chloride gas" to form a sodium Chloride. NaCL

2NaCl-->2Na+ Cl2

Correct Option- Decomposition

_____________________________

Decomposition reactions are those reactions in which a compound breaks or splits into two or more simpler substances. In such reactions, one reactant breaks down to form many i.e. at least two products. These reactions require energy to break existing bonds, so they take place in the presence of heat, light, or electricity.

Example:- AB--> A+B

Hope This Helps You ❤️

You have made a 2.5 molar solution (2.5 moles per liter) of a particular chemical. If the molecular weight of the chemical is 28 g (28 g/mol), how many kg of the chemical are dissolved in 1 L of this solution

Answers

Answer:

Mass of solute in Kg = 0.07 Kg

Explanation:

Given

Molecular weight of the chemical = 28 grams per mole

Solution consists of 2.5 moles of solution

Mass of solute in the solution = 2.5 *28 = 70 grams

Mass of solute in Kg =  70 grams/1000 = 0.07 Kg

A sample of a gas has a volume of 852 mL at 298 K. If the gas is cooled to 200K, what would the new volume be?

Answers

Answer:

571.81 mL

Explanation:

Assuming constant pressure, we can solve this problem by using Charles' law, which states that at constant pressure:

V₁T₂=V₂T₁

Where in this case:

V₁ = 852 mLT₂ = 200 KV₂ = ?T₁ = 298 K

We input the data:

852 mL * 200 K = V₂ * 298 K

And solve for V₂:

V₂ = 571.81 mL

The new volume would be 571.81 mL.

How it affects your lives or the lives of people near the area where soil erosion happened?




Please Answer! thanks! ​

Answers

Answer:

negatively

Explanation:

when soil erosion happens,by the agent of water for example,the soil will eventually lose it's valuable minerals and become infertile, people won't be able to grow crops there.

Hydration of alkynes gives good yields of single compounds only with symmetrical or terminal alkynes. Draw the major organic product(s) formed when 3-methylcyclodecyne undergoes hydration in the presence of HgSO4 and H2SO4.

Answers

Answer:

Following are the solution to the given choice:

Explanation:

Hex-2-yne is just not alkyne symmetric, therefore two things respectively hexan-3-one and hexan-2-one are to be given.

The attached file it displayed the response along with the mechanism, please find the.

A 1.0 kg bottle of sodium carbonate (Na2CO3, 106.0 g/mol) is available to clean up 5.00 liters of spilled concentrated aqueous hydrochloric acid (9.75 M). Is this enough sodium carbonate to neutralize the acid according to the following reaction?
2 HCl (aq) + Na2CO3 (s)  2NaCl (aq) + CO2 (g) + H2O (l)
(1) No, there is approximately 40% too small amount of sodium carbonate needed.
(2) Yes, there is approximately 80% more than what is needed.
(3) No, there is approximately 60% too small amount of sodium carbonate needed.
(4) Yes, there is exactly enough sodium carbonate, but no excess.
(5) No, there is approximately 20% too small amount of sodium carbonate needed.

Answers

Answer:

The correct answer is option 4, that is, there is exactly enough sodium carbonate.

Explanation:

Based on the given question, the reaction will be,

2 HCl (aq) + Na2CO3 (s) ⇒ 2 NaCl (aq) + CO2 (g) + H2O (l)

Therefore, for neutralizing 2 moles of HCl, one mole of Na2CO3 is required.

No of moles present in 1 Kg or 1000 grams of Na2CO3 will be,

Moles = Weight/Molecular mass of Na2CO3

Moles = 1000 / 106 = 9.43

Thus, 9.43 moles of Na2CO3 is present.

No of moles present in 1 liter of 9.75 M HCl is 9.75.

No. of moles present in 5 Liters of HCl (9.75 M),

= 5 × 9.75 = 48.75

Thus, for 2 moles of HCl 1 mole of Na2CO3 is required. Now for 48.75 moles of HCl, the moles required of Na2CO3 is 9.75. Therefore, for complete neutralization, the moles of Na2CO3 required is 9.75, and the present moles is 9.43.

Hence, there is exactly enough sodium carbonate.

Which is considered a good insulator of heat? *
1 point
Captionless Image
A. aluminum, because it allows heat to flow easily.
B. glass, because it allows heat to flow easily.
C. plastic, because heat is unable to flow easily through it.

Answers

Answer: Aluminum, because it allows heat to flow easily.

Have a nice day!

Statement which represents following chemical reaction.

Answers

Answer:

Third option is the correct answer

Explanation:

A solution of sodium chloride and a precipitate of barium sulphate is formed.

What did ancient astronomers not know about eclipses?

Answers

Answer:

yes of course everyone know eclipse in ancient January 2004 eclipse was founded in other country's

When 229 J of energy is supplied as heat at constant pressure to 3.0mol Ar(g) the temperature of the sample increases by 2.55K. Calculate the molar heat capacities at constant volume and constant pressure of the gas.

Answers

Answer:

The answer is "[tex]\bold{21.616\ \ \frac{J}{mol K}}[/tex]".

Explanation:

when it is a constant pressure:

[tex]Cp= \frac{\Delta q}{n\Delta T} \\\\[/tex]

[tex]=\frac{229}{3\times 2.55}\\\\=\frac{229}{7.65}\\\\=29.93 \frac{J}{mol\ K}\\[/tex]

and,  

[tex]Cp-Cv=R\ \ (Mayer's\ formula)[/tex]

then,

[tex]Cv=Cp-R\\\\[/tex]  

    [tex]=29.93-8.314\\\\=21.616\ \ \frac{J}{mol K}[/tex]

scenario Juan and Maria Lopez wish to invest in a no-risk savings account. They currently have 530,000 in an account bearing 5.25 % annual interest, compounded continuously. The following options are available to them.​

Answers

Answer:

The amount after three year is 617934.1302

Explanation:

Complete question

A person places $530,000 in an investment account earning an annual rate of 5.25%, compounded continuously. Using the formula V = Pe^{rt}V=Pe rt , where V is the value of the account in t years, P is the principal initially invested, e is the base of a natural logarithm, and r is the rate of interest, determine the amount of money, to the nearest cent, in the account after 3 years

Solution

The formula for calculating compound interest is

[tex]A = p (1 + \frac{r}{n})^{nt}[/tex]

Substituting the given values we get -

[tex]A = 530,000 (1 + \frac{5.25}{100})^3\\A = 530,000 * ( 1+ 0.0525)^3\\A = 530,000 * ( 1.0525)^3\\A = 617934.1302[/tex]

The amount after three year is 617934.1302

When an acetic acid solution is titrated with sodium hydroxide, the slope of the titration curve (pH versus volume of NaOH added) increases when sodium hydroxide is first added. This change shows that ________

Answers

Answer:

When an acetic acid solution is titrated with sodium hydroxide, the slope of the titration curve (pH versus volume of NaOH added) increases when sodium hydroxide is first added. This change shows that acetic acid is being converted to sodium acetate.

Explanation:

ABOUT TITRATION - Titration is a chemical analysis method for determining the amount of a constituent in a sample by adding an exact known quantity of another substance to the measured sample with which the desired constituent reacts in a specific, known proportion. A burette, which is essentially a long, graduated measuring tube with a stopcock and a delivery tube at the bottom end, is used to gradually administer a standard solution of titrating reagent, or titrant.

It is feasible to identify a good visual color indicator for many titration processes that will signify the end point at, or very near to, the equivalence point.

Acid-base titrations, precipitation titrations, complex-formation titrations, and oxidation-reduction (redox) titrations are examples of such titrations, which are categorised according to the nature of the chemical reaction that occurs between the sample and the titrant.

Titrations of metal ions with the reagent disodium ethylenediaminetetraacetate are the most important titrations based on complex-formation processes (a salt of edetic acid, or EDTA).

Hence , the answer is that acetic acid is converted into sodium acetate.

Given 32.0 g of water, if we see a temperature change from 25.0°C to 20.0°C, then how much heat energy (q) is transferred from the water?

(The specific heat of water is 4.184 J/g°C )

Answers

Answer:

Q = 669.44 J

Explanation:

Given that,

Mass of water, m = 32 g

The temperature change from 25.0°C to 20.0°C.

We need to find the amount of heat energy transferred. Let it is Q. We know that,

[tex]Q=mc\Delta T[/tex]

Where

c is the specific heat of water

Put all the values,

[tex]Q=32\times 4.184 \times (20-25)\\Q=669.44\ J[/tex]

So, 669.44 J of heat energy is transferred from the water.

Science- I need help with a question really quick I’m ending school soon

Answers

Bar graph, and charge your phone
the answers bar graph

what is a compound ? Give five examples ?​

Answers

[tex]\huge\mathsf{\red{\underline{\underline{Compound}}}}[/tex]

[tex]{\green{\dashrightarrow}}[/tex]A chemical compound is a chemical substance that is made of two or more atoms of different elements that share a chemical bond.

[tex]{\green{\dashrightarrow}}[/tex]A chemical formula represents the ratio of atoms per element that make up the chemical compound.

[tex]\large{\pink{\sf{5~ Examples~ of~ Compound~ are:-}}}[/tex]

Example 1 :-

Water (H2O, consisting of 2 hydrogen atoms and one oxygen atom)

Example 2 :-

Carbon dioxide (CO2, consisting of one carbon atom and two oxygen atoms)

Example 3 :- Sodium Chloride (NaCl, consisting of one sodium atom and one chloride atom)

Example 4:-

Methane (CH4, consisting of one carbon atom and four hydrogen atoms)

Example 5 :-

Pure glucose is a compound made from three elements - carbon, hydrogen, and oxygen. The ratio of hydrogen to carbon and oxygen in glucose is always 2:1:1.
Here’s the answer H2O and stuff

Can someone help me with a bio organic questions??‍♀️

Answers

Yeah what is the question
I believe the answer could be “alkanes”

how do the biosphere and geosphere interact? give an example

Answers

Answer:

Plants

Explanation:

Plants, part of the biosphere, grow in the soil, which is part of the geosphere

hope this helped :)

What is the total mass of products formed when 64.18 grams of CH4 is burned with excess oxygen?

Answers

80 grams of product is formed when 16 grams of CH₄ is burnt in excess of Oxygen so ur answer is

80 GRAMS

the means of X ? ⊙_⊙⊙_⊙⊙_⊙​

Answers

Answer:

x means unknown it is an unknown value.

For example if you have 2 x you have 2 u know values.

Explanation:

If you want us to explain it further please provide a picture.

Question:-

What is X

Answer:-

X mean an Unknown value in a question.

for example :- 2x = 4

Here, the value of x is not known but it can be known by solving the problem.

The solution is :-

=> 2x = 4

=> x = 4/2

=> x = 2

So, here the value of X is 2

Hence, we can say that "X is an unknown value in a question and solving that question gives the correct value of x"

-TheExtraterrestrial

Which is the same as moving the decimal point 3 places to the left in a decimal
number?
Multiplying the number by 100
Dividing the number by 1,000
Multiplying the number by 1,000
Dividing the number by 100

Answers

Answer:

B. Dividing the number by 1,000

Explanation:

Every time you move the decimal ,add a zero.Since the decimal is moved three times ,there are three zeroes. When you move left ,the number is getting smaller so it is division.

No links !! No spam !!
1. Which point defect in its crystal units alters the density of a solid?
Please answer​

Answers

Schottky defects in its crystal units alters the density of a solid!

Why will no one help this is bogus

Answers

Answer:

D

Explanation:

Answer:

The answer is D

A silver nitrate solution is mixed with a potassium bromide solution. The most likely precipitate formed is:

Answers

Answer: Silver bromide

Explanation: AgNO3 + KBr — AgBr + KNO3

Element X has two naturally occurring isotopes, 65X (isotopic mass 65.3410 amu, abundance 31.87%) and 67X (isotopic mass 66.9519 amu, abundance 68.13%). Calculate the atomic mass of element X.

Answers

Answer:

[tex]m_X=66.4385amu[/tex]

Explanation:

Hello there!

In this case, according to the given information for this problem, it turns out possible for us to calculate the average atomic mass of the element by multiplying the mass of each isotope by its percent abundance and then add up the results, just as shown below:

[tex]65.3410amu*0.3187=20.8242amu\\\\66.9519amu*0.6813=45.6143amu\\\\m_X=20.8242amu+45.6143amu\\\\m_X=66.4385amu[/tex]

Regards!

Which element has the smallest mass on the periodic table? *
O
H
Pb
He
Mg

Answers

Answer:

That should be Hydrogen.

So The second option Is legit!

If the atomic number of an element is 14, the identity of the element must be

A. Nitrogen
B. Silicon
C. Carbon
D. Niobium

Answers

Answer:

silicon

Explanation:

because silicon has 14 electrons and protons

If one neutron initiates a fission event that produces two neutrons in the products, how many new reactions can now be initiated? 9 If each of the neutrons produced in the first fission event then initiates a fission event that produces one neutron in the products, how many new reactions can now be initiated by each neutron? How many neutrons in total were produced by the two fission events described?

Answers

Answer:

See Explanation

Explanation:

A fission reaction is a chain reaction. The neutrons that are produced in one reaction leads to further chain reaction in the system.

If one neutron initiates fission that leads to the production of two other neutrons,two more new reactions are initiated.

If these reactions each produce one neutron, then another two new reactions are initiated. This makes a total of four new reactions from the two fission events described.

A total of four neutrons is produced from the two fission events.

Answer:

If one neutron initiates a fission event that produces two neutrons in the products, how many new reactions can now be initiated?

2

If each of the neutrons produced in the first fission event then initiates a fission event that produces one neutron in the products, how many new reactions can now be initiated by each neutron?

1

How many neutrons in total were produced by the two fission events described?

4

Explanation:

Got it correct on Edge.

A science lab has copper wire coated
with rubber tubing, a plastic vial, and a
pair of cotton gloves. Which of these
materials is not an electrical insulator?

Answers

Answer:

the answer is copper wire

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