How many millimoles of Ca(NO3) 2 contain 4.78 × 1022 formula units of Ca(NO3) 2? The molar mass of Ca(NO3) 2 is 164.10 g mol-1.
A) 12.6 mmol Ca(NO3) 2
B) 13.0 mmol Ca(NO3) 2
C) 20.7 mmol Ca(NO3) 2
D) 79.4 mmol Ca(NO3) 2
E) 57.0 mmol Ca(NO3) 2
Correct Answer:
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