Answer:
The w/w 5 of the solution is 10 %.
Explanation:
w/w % : The percentage mass or fraction of mass of the of solute present in total mass of the solution.
[tex]w/w\%=\frac{\text{Mass of solute}}{\text{Mass of solution}}\times 100[/tex]
w/v %: The percentage of mass of the of solute present in total volume of the solution.
[tex]w/v\%=\frac{\text{Mass of solute}}{\text{Volume of solution}}\times 100[/tex]
v/v % : The percentage volume of the of solute present in total volumeof the solution.
[tex]v/v\%=\frac{\text{Volume of solute}}{\text{Volume of solution}}\times 100[/tex]
Mass of solution = Mass of solute + Mass of solvent
Mass of solute= 10 g of NaOH
Mass of solvent = 90 g
Mass of solution = 10 g + 90 g = 100 g
[tex]w/w\%=\frac{10 g}{100 g}\times 100 =10\%[/tex]
The w/w 5 of the solution is 10 %.