Answer :
Answer: The molar concentration of hydrogen peroxide solution is 0.882 M
Explanation:
We are given:
3.0% (w/w) hydrogen peroxide solution
This means that 3.0 grams of hydrogen peroxide is present in 100 grams of solution
To calculate the volume of solution, we use the equation:
[tex]\text{Density of substance}=\frac{\text{Mass of substance}}{\text{Volume of substance}}[/tex]
Density of solution = 1 g/mL
Mass of solution = 100.0 g
Putting values in above equation, we get:
[tex]1g/mL=\frac{100g}{\text{Volume of solution}}\\\\\text{Volume of solution}=\frac{100g}{1g/mL}=100mL[/tex]
To calculate the molarity of solution, we use the equation:
[tex]\text{Molarity of the solution}=\frac{\text{Mass of solute}\times 1000}{\text{Molar mass of solute}\times \text{Volume of solution (in L)}}[/tex]
Given mass of hydrogen peroxide = 3.0 g
Molar mass of hydrogen peroxide = 34 g/mol
Volume of solution = 100 mL
Putting values in above equation, we get:
[tex]\text{Molarity of solution}=\frac{3\times 1000}{34\times 100}\\\\\text{Molarity of solution}=0.882M[/tex]
Hence, the molar concentration of hydrogen peroxide solution is 0.882 M