What is the mass of #"5 mol SO"_2"#?

1 Answer
Nov 21, 2017

The mass of #"5 mol SO"_2# is #"300 g"#.

Explanation:

To determine the mass of #"5 mol SO"_2"#, multiply its molar mass by the number of moles.

Molar mass #"SO"_2:#

Multiply the subscript of each element by its molar mass (atomic weight on the periodic table in g/mol) and add the results.

#(1xx"32.06 g/mol S") + (2xx"15.999 g/mol O")="64.058 g/mol SO"_2"#

Mass of 5 moles #"SO"_2#

Multiply the molar mass of #"SO"_2# by #"5 mol SO"_2"#.

#5color(red)cancel(color(black)("mol SO"_2))xx(64.058"g SO"_2)/(1color(red)cancel(color(black)("mol SO"_2)))="300 g SO"_2"# (rounded to one significant figure)