We know the volume and density of a red blood cell:
\[ \text{Volume} = 90.0 \times 10^{-12} \, \text{cm}^3 \]
\[ \text{Density} = 1.096 \, \text{g/mL} \]
Since 1 cm³ = 1 mL, we can use the density formula:
\[ \text{Mass} = \text{Density} \times \text{Volume}
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