Do you know this Ca(NO2)2 ? It's not calcium nitrate
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Answer : The moles of hydrogen gas will be, 201.9 moles
Solution :
First we have to calculate the molar mass of hydrogen gas.
using ideal gas equation,
where,
n = number of moles of gas
w = mass of gas
P = pressure of the gas = 1 atm
T = temperature of the gas =
M = molar mass of hydrogen gas = ?
R = gas constant = 0.0821 Latm/moleK
D = density of gas = 0.090 g/L
Now put all the given values in the above equation, we get the molar mass of hydrogen gas.
Now we have to calculate the moles of hydrogen gas.
Therefore, the moles of hydrogen gas is, 201.9 moles