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P = 1 atm = 1,01 x 10⁵ Pa
T = 0⁰C = 273⁰C
V = 2,8 Liter
R = 8314
M = 32
m = ............................?
Penyelesaian :
* Mencari mol
P • V = n • R • T
1,01 x 10⁵ • 2,8 = n • 8314 • 298
2828000 = 2477572n
n = 0,1142 mol
* Mencari masa :
massa = mol x M
massa = 0,1142 x 32
massa ≈ 3,65 gram
Yang paling mendekati = 4 gram (Jawaban d)