Hydrogen gas has a density of 0.090 g/L, and at normal pressure and -1.72 C one mole of it takes up 22.4 L. How would you calcul
ate the moles in 900. g of hydrogen gas? Set up the math. But DONT DO ANY OF IT. Just leave your answer as a math expression.
2 answers:
Answer:
n = 
Explanation:
If 1 mole of hydrogen gas occupies 22.4 L, then, the number of moles of hydrogen gas (n) can be found by the volume (V):
1 mole ----- 22.4 L
n ------ V
By a simple direct three rule:
22.4n = V
n = V/22.4
But the volume is mass(m) divided by the density (d)
V = m/d
So

For a mass of 900 g and a density of 0.090 g/L:
n = 
Answer:

Explanation:
Assuming that all caculations are at normal pressure and -1.72°C :

Where
is the number of moles of hydrogen
is the mass of hydrogen
is the density of hydrogen
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