How many grams of solute are needed to prepare a 3.50% mass/mass solution that has a solution mass of #2.5 * 10^2# grams?

1 Answer
Jun 24, 2017

Answer:

#8.75# #"g solute"#

Explanation:

If the mass of the solution is #2.5xx10^2# #"g"#, and the percentage mass of the solute is #3.50%#, then the mass of the solute is

#(2.5xx10^2color(white)(l)"g solution")(0.0350) = color(red)(8.75# #color(red)("g solute"#

You would therefore need #color(red)(8.75# #sfcolor(red)("grams of the solute"# to prepare the solution.