Interpretation:
The percent by mass of sodium chloride (NaCl) in a broth is to be calculated where 450 mg of NaClin 240 g of broth.
Concept introduction:
The concentrations of solutions are expressed in different ways, all of them involved in the quantity of solute and the quantity of solution or solvent. Among them, Mass percentage (w/W percent) is used to express the concentration of solution.
Mass percentage (w/W percent):
It is expressed as the ratio of the mass of the solute to the mass of the solution multiplied by 100. (Mass of the solution = mass of the solute + mass of the solvent)
In expression,

Answer to Problem 33SSC
Answer. The percent by mass of sodium chloride (NaCl) is 0.19 %.in a broth where 450 mg of NaClin 240 g of broth.
Explanation:
Data given: Mass of solution = 240 g
Mass of the solute = 450 mg=0.45 g
= 0.19 %.
Thus, The percent by mass of sodium chloride (NaCl) is 0.19 %.in a broth where 450 mg of NaClin 240 g of broth.
Explanation of Solution
Data given: Mass of solution = 240 g
Mass of the solute = 450 mg=0.45 g
= 0.19 %.
Thus, The percent by mass of sodium chloride (NaCl) is 0.19 %.in a broth where 450 mg of NaClin 240 g of broth.
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