What is the mass of 3.45 moles of #NH_4NO_3#?

2 Answers
Dec 31, 2016

Answer:

Shouldn't you tell us this?

Explanation:

The molar masses of hydrogen, nitrogen, and oxygen, are #1.00794, 14.01,# and #15.999*g*mol^-1# respectively. Sum these masses appropriately, multiply by 3.45, and report back if you're still unsure.

Dec 31, 2016

Answer:

The mass of 3.45 moles #"NH"_4"NO"_3"# is 276 g.

Explanation:

First determine the molar mass of ammonium nitrate, #"NH"_4"NO"_3"#. Then multiply the given moles ammonium nitrate by its molar mass.

Molar mass #"NH"_4"NO"_3":##"80.043 g/mol"#
https://www.ncbi.nlm.nih.gov/pccompound/?term=ammonium+nitrate

#(3.45cancel"mol NH"_4"NO"_3)xx(80.043"g NH"_4"NO"_3)/(1cancel"mol NH"_4"NO"_3)="276 g NH"_4"NO"_3"# rounded to three significant figure