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Tom [10]
1 year ago
10

Calculate the amount of heat needed to melt 99.9 g of solid acetic acid (HCH,CO2) and bring it to a temperature of 85.1 °C. Roun

d your answer to 3 significant digits. Also, be sure your answer contains a unit symbol
Chemistry
1 answer:
Nadusha1986 [10]1 year ago
3 0

Q = 1.161 J/kg of heat is required to melt 99.9 g of solid acetic acid (HCH,CO2). Q = mL(Latent heat is the energy emitted or absorbed by a body while changing it state ). (Latent heat is the energy released or absorbed by a body while changing it state ).

<h3>How to fix?</h3>

Apply the equation Q = mL where:

Energy is Q. (J)

m = Mass (g)

L = Acetic acid's latent heat of fusion 192(J/g) = J/g

Q is equal to 0.099 kg times 11.73 kj/mol.

Q = 1.161J/kg.

<h3>What is latent heat, and what varieties are there?</h3>

Latent heat is the amount of energy that a substance experiencing a change in state, such as ice turning into water or water turning into steam, can absorb or release while maintaining a constant temperature and pressure. Types: The material exists in three states: solid, liquid, and gaseous.

<h3>What does "sensible heat" mean?</h3>

Heat that can actually be felt is considered to be sensible heat. Instead of the phase shifting, energy is what causes the temperature to vary as it moves from one system to another. For instance, it warms the water instead of melting the ice.

Learn more about specific heat on:

brainly.com/question/11297584

#SPJ4

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Why is the? The second ionization energy of sodium is about three times greater than the second ionization energy of magnesium
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~Na+1 is already in the preferred form. Because of this, the second ionization energy of sodium is higher than normal. Mg+1 loses an electron to form s2 p6 .

3 0
2 years ago
The volume of a 12.4 g metal pellet is measured by water displacement. It is added to a graduated cylinder filled with water, an
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Answer:

                3.39 g.mL⁻¹ or 3.39 g.cm⁻³

Solution:

Data Given:

                             Mass of Pellet  =  12.4 g

                             Volume of Pellet  =  13.65 mL - 10.00 mL  =  3.65 mL

                             Density  =  ?

Formula Used,

                             Density  =  Mass ÷ Volume

Putting values,

                             Density  =  12.4 g ÷ 3.65 mL

                             Density =  3.39 g.mL⁻¹ or 3.39 g.cm⁻³

5 0
3 years ago
A physical property can be _________. A. altered with a physical change. B. used to change the identity of a substance. C. obser
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Answer:

It is C. observed using the 5 senses.

Explanation:

you can observe a substance without changing its identity.

5 0
3 years ago
The volume of gas is 200.0
Ber [7]

Answer:

40 atm.

Explanation:

From the question given above, the following data were obtained:

Initial volume (V₁) = 200 mL

Initial pressure (P₁) = 2 atm

Final volume (V₂) = 10 mL

Temperature = constant

Final pressure (P₂) =?

The final pressure of the gas can be obtained by using the Boyle's law equation as shown below:

P₁V₁ = P₂V₂

2 × 200 = P₂ × 10

400 = P₂ × 10

Divide both side by 10

P₂ = 400 / 10

P₂ = 40 atm

Thus, the final pressure of the gas is 40 atm.

7 0
3 years ago
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