Question

d.
32. The molar volume of oxygen, in L, at 1.00 atmosphere and 100°C, is closest to:
a. 8.2
b. 22.4
c. 24.5
d. 30.6

Answer 1

Answer:

22.4

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Answer 2

Answer: D. 30.6

Explanation: Use the Idea Gas equation.

                                        pV=nRT

p = 101 kPa since 1 atm

V= we need to find this

n = 1 because molar volume is asked

R= 8.314 universal gas Constant

T= 373 K temperature always taken in Kelvin. Just add C temp to 273

V= 1x(8.31)x(373)/101

V=30.6

Side Note: If Calculator isnt allowed no need to worry about the decimals and the weird integers. Round 8.31 to 8 and 101 to 100. The answer will come close to the actual answer like for example in this the answer will come 29.84 closest to 30.6.