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DIA [1.3K]
4 years ago
13

How do you think you can use the calorimeter to compare the specific heat capacities of a substance?

Chemistry
1 answer:
grandymaker [24]4 years ago
8 0
The calorimeter burns the object and tells how many calories are generated when the object is burned.
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When you heat a liquid, the molecules spread farther apart and the liquid expands, and when you cool a liquid, the molecules get
ale4655 [162]

Answer:

the water is diffrent because it is now a gas not a liquid

Explanation:

4 0
3 years ago
Read 2 more answers
Which of the compounds found in wood are difficult to degrade (or break apart)? (select all that apply.)?
Lera25 [3.4K]

There are four major components found in wood, and these are:

cellulose

lignin

starch

protein

 

Among the four, I believe that cellulose and lignin are the most difficult to degrade because they contain large amount of cross-linked heavy hydrocarbons.

 

Answer:

cellulose

lignin

3 0
3 years ago
a piece of newly synthesized material of mass 25.0 g at 80.0C is placed in a calorimeter containing 100.0 g of water at 20.0C. I
serg [7]

Answer:

The correct answer is 1.194 J/g.ºC

Explanation:

The heat released by the material is absorbed by the water. We put a minus sign (-) for a released heat and a plus sign (+) for an absorbed heat.

We know the mass of the material (mass mat= 25.0 g) and the mass of water (mass H20= 100.0 g) and the specific heat capacity of water is known (Shw=4.18 J/g.ºC), so we can equal the heat released by the material and the heat absorbed by water y calculate the specific heat capacity of the material (Shm) as follows:

heat released by material = heat absorbed by water

-(mass material x Shm x ΔT)= mass water x Shw x ΔT

-(25.0 g x Shm x (24ºC - 80ºC)= 100.0 g x 4.18 J/g.ºC  x (24ºC-20ºC)

25.0 g x Shm x (56ºC) =  100.0 g x 4.18 J/g.ºC x 4ºC

⇒Shm= (100.0 g x 4.18 J/g.ºC x 4ºC)/(25.0 g x 56ºC)

 Shm= 1.194 J/g.ºC

5 0
3 years ago
Read 2 more answers
What is the mass of 4.5 moles of Cu(NO3)2?
Tatiana [17]

Answer:

The mass of 4.5 moles of Cu(NO3)2 is 843.55g

Explanation:

Mass = moles x Molar mass

Mass = 4.50(187.55)

         = 843.97g

6 0
3 years ago
HELP CHEMISTRY PLEASE I BEG U 25 POINTS
andrew-mc [135]

Answer:

The correct answers are given below

Explanation:

1 An increase of one in atomic number and no change in the mass number.

2 All the above statements are correct.

3  A decrease of one in atomic number and a decrease of four in mass number.

4 Have a high neutron to proton ratio.

7 0
3 years ago
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