a 37.4 mL sample of H2 at STP would contain how many grams of hydrogen?
please help me i have a chemistry test on this tomorrow!
- AlLv 78 years agoBest Answer
22.4 L/mol at STP
moles = vol / 22.4
moles = 0.0374 L / 22.4 L = 0.00170 moles
mass = moles x molar mass
mass = 0.00170 moles x 2.02 g/mol = 0.00337 g
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