C-06-Q043mediumsingle_mcqApproximate mass of 1 H2O\mathrm{H_2O}H2O molecule is—a1.8×10−231.8 \times 10^{-23}1.8×10−23 gb2.99×10−232.99 \times 10^{-23}2.99×10−23 gc181818 gd6.023×10−236.023 \times 10^{-23}6.023×10−23 g