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DiKsa [7]
3 years ago
8

how many calories of energy are given off to lower the temperature of 100.0g of iron from 150.0°C to 35.0°C?

Chemistry
1 answer:
jeyben [28]3 years ago
4 0

Answer:

ΔT = Tfinal − Tinitial = 150°C − 35.0°C = 125°C

given the specific heat of iron as 0.108 cal/g·°C

heat=(100.0 g)(0.108 cal /g· °C )(125°C) =

  100x 0.108x125= 1350 cal

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Which of the following has to remain constant to allow you to use the combined gas law for calculations?
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Answer:

Amount of gas

Explanation:

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3 years ago
Find the molar mass of this
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Explanation:

Given problem:

Find the molar mass of:

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Solution:

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3 years ago
You have 4 moles of oxygen gas in a flask. 4 moles of helium gas is added. What happens to the total pressure of the gases in th
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Answer: The correct option is (c). The total pressure doubles.

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Final total pressure when 4 moles of helium gas were added:

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from (1)

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On rearranging, we get:

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3 years ago
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