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REY [17]
3 years ago
12

A gas at 80 kPa occupies a volume of 5 mL. What volume will the gas occupy at 70 kPa

Chemistry
1 answer:
Rashid [163]3 years ago
6 0

Answer:

Volume will the gas occupy at 70 kPa = 5.71

Explanation:

As per the gas law

P_1V_1 = P_2V_2

Here

P_1 = initial pressure of the gas

P_2 = final pressure of the gas

V_1 = Initial volume of the gas

V_2 =  the final volume of the gas

here,

P_1  = 80 kPa

V_1 = 5 mL

P_2 = 70

Substituting the given values in above equation, we get -

80 * 5 = 70 * V_2\\V_2 = 5.71

Volume will the gas occupy at 70 kPa = 5.71

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<em>Gather all the information in one place</em> with molar masses above the formulas and masses below them.  

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\text{Moles of Fe$_{2}$O$_{3}$} =\text{55.0 g Fe$_{2}$O$_{3}$} \times \frac{\text{1 mol Fe$_{2}$O$_{3}$}}{\text{159.69 g Fe$_{2}$O$_{3}$}}= \text{0.3444 mol Fe$_{2}$O$_{3}$}

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