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34kurt
3 years ago
12

16. A sample of nitrogen gas,

Chemistry
1 answer:
Lana71 [14]3 years ago
4 0

find mol of N2 present using gas law equation

PV = nRT

P = pressure = 688/760 = 0.905 atm.

V = 100mL = 0.1L

n = ???

R = 0.082057

T = 565+273 = 838

Substitute:

0.905*0.1 = n*0.082057*838

n = 0.0905 / 68.76

n = 0.00132 mol N2

Molar mass N2 = 28 g/mol

0.00132 mol = 0.00132*28 = 0.037g N2 gas

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5 0
3 years ago
An aluminum block has a volume of 30.0 cm³ and a mass of 81 grams. What is the density of aluminum?
kupik [55]

Answer:

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Explanation:

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8 0
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