142
We refer to "molecules" of sodium sulfate as formula units. The formula is Na2SO4. The molar mass is 142 g/mole. And sulfur (S) is 32 out of the entire 142 g. So, percent sulfur is 32/142 (x100%) = 22.5%
142 grams Cl2
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i dont know i havent reached that far yet
142 grams Cl2 Thank Yhuung Marker FB <---
Sodium Sulfate is Na2SO4 and the molecular weight is 142. So 0.15 moles would have a mass of 0.15 x142 = 21.3g.
150 over 80
466 ft (142 m)
Add up the compound's molar mass: Na=2(23), S=1(32), O=4(16). Sum is 142. Oxygen's part of that total is 64 (16x4). Percent is part/total, so 64/142 = 0.4507 = 45.1%.
Louisville lies 466 feet above sea level (142 m).
85% of 142= 85% * 142= 0.85 * 142= 120.7