Final answer:
To calculate the percent mass of ammonium chloride in a mixture, one would divide the mass of ammonium chloride by the total mass of the mixture, and then multiply by 100%. However, the question does not provide enough data for a specific calculation.
Step-by-step explanation:
The question "What is the percent mass of ammonium chloride in the mixture?" requires calculation of the percentage composition of a component within a mixture. To find this, you would normally divide the mass of ammonium chloride by the total mass of the mixture, and then multiply by 100%. However, since there is no specific data provided, we can't perform an actual calculation. This type of problem is common in chemistry courses, particularly when learning about stoichiometry and solutions.