Calculate the molecular mass of gaseous substance if 0.125g of the gas occupies 93.3 mL at STP.?

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Calculate the molecular mass of gaseous substance if 0.125g of the gas occupies 93.3 mL at STP.?

2006-11-16 04:26:53 · 3 answers · asked by cabo 1 in Science & Mathematics ➔ Chemistry

3 answers

MM = mass * 22.4 liters/volume
MM = .125 * 22400/93.3 = 30.01

2006-11-16 05:04:08 · answer #1 · answered by kirchwey 7 · 0⤊ 0⤋

STP is a million atm of stress and 293 ok. plug into PV= nRT and remedy for n: a million atm (0.0.33 L) = n (0.0821 L atm/mol ok) (273 ok) 0.00416 mol = n locate molar mass via dividing grams via moles: 0.a hundred twenty five g/0.00416 mol = 30.03 g/mol

2016-10-22 04:59:06 · answer #2 · answered by connely 4 · 0⤊ 0⤋

2195.52g

2006-11-16 04:31:54 · answer #3 · answered by Anonymous · 0⤊ 0⤋