Question #ddaf8

1 Answer
May 18, 2017

Answer:

#"m"("AgNO"_3) = 581.4# #"g"#

Explanation:

The formula for moles of a (solid) compound is:

#"n" = "m"/"Mr"# where #"n"# is the number of moles, #"m"# is the mass of the substance in grams and #"Mr"# is the molar mass of the substance.

We can rearrange this formula given the no of moles and the molar mass:

#"m" = "nMr"#

#"Mr"("AgNO"_3) =170# #"g"# #"mol"^-1#

#"m"("AgNO"_3) = 3.42 xx170 = 581.4# #"g"#