The total number of electrons in 18 ~mL of water (density =1 ~g ~mL ⁻¹ ) is

Step-by-step solution

In 18 ~mL , number of moles of H ₂ O = mass of H ₂ O molecular mass = density volume molecular mass = 1 18 18 =1 ~mol Number of moles of H ₂ O in 1 ~mol =6.022 10²³ and number of e ⁻ in 1 molecule of H ₂ O =1 2+8=10 Number of e ⁻ in 1 mole of H ₂ O =6.022 10²³ 10=6.022 10²⁴