Question

Calculate the mass of the $5\times {10}^{23}$ molecules of glucose.

Molecular mass of glucose = 180

Answer 1

$\mathrm{Mass}\mathrm{of}\mathrm{glucose}=\frac{\mathrm{Molecular}\mathrm{mass}\times \mathrm{number}\mathrm{of}\mathrm{particles}}{\mathrm{Avogadro}’s\mathrm{number}}=\frac{(180\times 5\times {10}^{23})}{6.023\times {10}^{23}}=149.43g$