A sodium chloride crystal contains sodium and chloride ions in a 1:1 ratio. To calculate the formula unit mass of sodium chloride, which process would you use?

Question

A sodium chloride crystal contains sodium and chloride ions in a 1:1 ratio. To calculate the formula unit mass of sodium chloride, which process would you use? — Exam MCQ

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A. Add the atomic mass of sodium and the atomic mass of chlorine — The atomic mass of sodium and the atomic mass of chlorine need to be added to calculate the formula unit mass of sodium chloride. The atomic mass of sodium is approximately 23u and that of chlorine is 35.5u. Formula unit mass of NaCl = 23u + 35.5u = 58.5u.

rrbjepyq.in · Answer

B. Multiply the atomic mass of sodium and the atomic mass of chlorine

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C. Subtract the atomic mass of chlorine from that of sodium

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D. Divide the atomic mass of sodium by that of chlorine

A sodium chloride crystal contains sodium and chloride ions in a 1:1 ratio. To calculate the formula unit mass of sodium chloride, which process would you use?

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