Question

calculate the concentration of a solution which cointain 2.5g salt disolved in 47.5g water in terms of mass by mass percentage ​

Answer 1

Answer:

5.263 %

Explanation:

mass %= mass of solute/ mass of solution

mass%= (2.5g/47.5g)X 100%=5.263%

Answer 2

Correct Question:-

Calculate the concentration of a solution which contain 2.5g salt dissoved in 47.5g water in terms of mass by mass percentage.

Given:-

•Mass of solute(salt)=2.5g

•Mass of solvent(water)=47.5g

To find:-

•Concentration of the solution

Solution:-

In order to solve this problem,we shall firstly calculate the mass of the whole solution.It can be calculated as follows:-

Mass of solution=Mass of solute+Mass of solvent

=>(47.5+2.5)g

=>50g

Thus,mass of the solution is 50g.

Now,Concentration of solution:-

=>Mass of solute/Mass of solution×100

=>2.5/50×100

=>0.05×100

=>5%

Thus,concentration of the solution is

5%(w/w).