for each compoud below give the mass of1mole and thevolume of1mole at STP(IF AGAS ATE STP A) H20 ,CH3CL , ,SO

Question

for each compoud below give the mass of 1mole and the volume of 1 mole at STP(IF agas at STP) a)H2O B)CH3CLl c)SO4 D)NH3 E)C3H7O F)NO2

Answer 1

1 mol = 22.4 litre at STP
mass = mol x molecular weight
cause all are 1 mol than all are 22.4 litre
a) 1 mol H2O = 18 gram
b) 1 mol CH3Cl = 50.5 gram
c) 1 mol SO4 = 96 gram
d) 1 mol NH3 = 17 gram
e) 1 mol C3H7O = 59 gram
d) 1 mol NO2 = 46 gram

Answer 2

At standard temperature and pressure the answers are:
a) H20 = 18g and the volume is 18cm3 as it is a liquid
b) CH3Cl = 40.5g and the volume is 40 cm3 as this is a liquid
c) SO4 = 96g this is an ion and only exists in solution or combined with hydrogen or a metal. However SO2 is a gas with one mole being 64g and its volume is 22.4 litres
d) NH3 = 17g and its volume is 22.4 litres
e) C3H7O is not a recognised compound but could be C3H7OH a mole of this weighs 60g and has a volume of 61cm3 as it is liquid or C3H6O which weighs 58g and has volume of 58cm3 or CH3OC2H5 which weighs 60 and has a volume of 61cm3
f) NO2 = 46g and has a volume of 22.4 litres
A mole of any gas has a volume of 22.4 litres at STP

Answer 3

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