3 years ago

1) What is the total mass of iron in 1.0 mole of Fe203?

Chemistry

1 answer:

olga55 [171]3 years ago

6 0

AWNSER: 1.0 mol Fe2O3 contains 111.69 g Fe .

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A gas that was cooled to 200 Kelvin has a volume of 65.8 L. If its initial volume was 132.4 L, what was its initial temperature?

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Initial temperature, T1 = 99.4 Kelvin

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<u>Given the following data;</u>

Initial volume, V1 = 65.8 Litres
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To find the initial temperature (T1), we would use Charles' law;

Charles states that when the pressure of an ideal gas is kept constant, the volume of the gas is directly proportional to the absolute temperature of the gas.

Mathematically, Charles' law is given by the formula;

$\frac {V}{T} = K$

$\frac {V_{1}}{T_{1}} = \frac {V_{2}}{T_{2}}$

Making T1 as the subject formula, we have;

$T_{1} = \frac {V_{1}T_{2}}{V_{2}}$

Substituting the values into the formula, we have;

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