Chemistry, asked by camarillofreedomgym, 7 months ago

How many NaCl formula units does 0.16 mg of salt contain?

Answers

Answered by SansleshTelang

Explanation:

First, find the number of moles of sodium chloride in the 0.12 mg by using the formula moles = mass/molar mass. But, 1 mol contains an Avagadro number of particles, ie 6.022×1023 particles. Therefore by ratio and proportion, 2.051⋅10−6 mol will contain 1.2×1018 particles of NaCl .

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