How many moles of #HNO_3# are needed to prepare 5.0 liters of a 2.0 M solution of #HNO_3#?
All you have to do here is to use the molarity of the solution as a conversion factor to determine the number of moles of solute that must be dissolved in
As you know, molarity tells you the number of moles of solute present in
Now, because solutions are homogeneous mixtures, i.e. they have the same composition throughout, you can use the molarity of the solution as a conversion factor to get the moles of solute needed for your solution
#5.0 color(red)(cancel(color(black)("L solution"))) * overbrace("2.0 moles HNO"_3/(1color(red)(cancel(color(black)("L solution")))))^(color(blue)("= 2.0 M")) = color(darkgreen)(ul(color(black)("10. moles HNO"_3)))#
The answer is rounded to two sig figs.
This tells you that dissolving