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Rudik [331]
2 years ago
9

How much heat is required to melt 22g piece of ice at -8 degrees to water at 14 degrees? (I'm stuck on the steps to solve.)

Chemistry
1 answer:
Alex Ar [27]2 years ago
7 0

The amount of heat that  is required to melt 22g piece of ice at -8 degrees to water at 14 degrees is 1,011.56 Joules.

<h3>How do we calculate the required heat?</h3>

Required amount of heat will be calculated by using the below equation as:

Q = mcΔT, where

m = mass = 22g

c = specific heat of ice = 2.09 J/g. degree C

ΔT = change in temperature = 14 - (-8) = 22 degree C

On putting all values, we get

Q = (22)(2.09)(22) = 1,011.56 J

Hence required amount of heat is 1,011.56 J.

To know more about required heat, visit the below link:

brainly.com/question/16462083

#SPJ1

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Answer:

Density = mass/volume

= 44/22.4

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5 0
3 years ago
What is the mass of 11.8 moles of water?
uysha [10]
First, find how many grams are in 1 mole of water.

For a hydrogen atom, there is about 1 gram per mole. For an oxygen atom, there are about 16 grams per mole.

In H2O, there are two hydrogen atoms and one oxygen atom. This means there are 18 grams in one mole of water. Multiply the mass in one mole by your number of moles.

18 x 11.8 = 212.4 grams

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Which type of solid can become an electrical conductor via chemical substitution?
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If irons temperature goes from 50c to 75c in a 20g sample, how many joules of heat were used?
Marina CMI [18]

Answer:

Option D. 230 J

Explanation:

We'll begin by calculating the temperature change of the iron. This can be obtained as follow:

Initial temperature (T₁) = 50 °C

Final temperature (T₂) = 75 °C

Change in temperature (ΔT) =?

ΔT = T₂ – T₁

ΔT = 75 – 50

ΔT = 25 °C

Thus, the temperature change of the iron is 25 °C.

Finally, we shall determine the amount of heat energy used. This can be obtained as follow:

Mass (M) = 20 g

Change in temperature (ΔT) = 25 °C

Specific heat capacity (C) = 0.46 J/gºC

Heat (Q) =?

Q = MCΔT

Q = 20 × 0.46 × 25

Q = 230 J

Thus, the amount of heat used was 230 J

3 0
3 years ago
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