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vlada-n [284]
2 years ago
5

Calculate the number of moles of carbon dioxide produced with a gas volume of a 115 mL at a temperature of 21゚C and water vapor

corrected pressure of 746 mm HG?
Chemistry
1 answer:
UkoKoshka [18]2 years ago
3 0

Answer:

n = 0.005 mol

Explanation:

Given data:

Volume = 115 mL

Temperature = 21°C

Pressure = 746 mmHg

Number of moles = ?

Solution:

746 mmHg = 746 /760 = 0.98 atm

21°C = 21+273 = 294 K

115 mL /1000 = 0.115 L

PV = nRT

n = PV/RT

n = 0.98 atm ×  0.115 L / 0.0821 atm. L. mol⁻¹. K⁻¹ ×294 K

n = 0.1127 atm. L /24.14 atm. L. mol⁻¹

n = 0.005 mol

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