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Complete and balance each gas-evolution equation.
Chapter 4, Problem 90E(choose chapter or problem)
QUESTION:
Complete and balance each gas-evolution equation.
Questions & Answers
QUESTION:
Complete and balance each gas-evolution equation.
ANSWER:
Solution: Here, we are going to calculate the percentage by mass of calcium carbonate in the given sample. Step1: Given, the volume of NaOH solution used = 11.56 mL = 11.56 / 1000 L = 0.01156 L The molarity of NaOH solution used = 1.010 M Therefore, number of moles of NaOH solution = Volume of solution in litres X Molarity = 0.01156 L X 1.010 M = 0.012 mol Step2: Again, the volume of HCl solution used = 30 mL = 30 / 1000 L = 0.030 L The molarity of HCl solution used = 1.035 M Therefore, number of moles of HCl solution = Volume of sol