Question
A quadrillion, $1 \times 10^{15}$, is the approximate number of red blood cells in 50,000 people. Which is greater: a quadrillion red blood cells or the number of nickel atoms in a $5-g$ nickel coin?
Step 1
We can do this by dividing the mass of nickel by its molar mass. The molar mass of nickel is 58.693 g/mol. So, we have: \[ \text{Moles of nickel} = \frac{5 \, \text{g}}{58.693 \, \text{g/mol}} \] Show more…
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