Answer:
6%.
Step-by-step explanation:
To calculate the percentage composition by mass of NaClO in the bleach product, we need to determine the molar mass of NaClO and the molar mass of the entire bleach product.
The molar mass of NaClO can be calculated as:
NaClO = 1 mol Na + 1 mol Cl + 1 mol O
= 22.99 g/mol + 35.45 g/mol + 16.00 g/mol
= 74.44 g/mol
The molar mass of the entire bleach product is not provided, so we cannot calculate the exact percentage composition. However, typical household bleach products contain between 5% and 8.25% NaClO by mass.
Assuming a hypothetical bleach product that contains 6% NaClO by mass, we can calculate the mass percentage as follows:
Mass percentage of NaClO = (mass of NaClO / mass of bleach product) x 100%
= (6 g NaClO / 100 g bleach product) x 100%
= 6%
Therefore, the percentage composition by mass of NaClO in the bleach product is 6%.