Question

What is the mass of 1 mole of water ?

Answer 1

• A mole represents 6.022$\times$10²³ particles.
• Molecular mass of ${\mathrm{H}}_2\mathrm{O}$= 2 $\times$(gram atomic mass of hydrogen) + (gram atomic mass of oxygen) = $2\times \left(1\right)+16$= 18g
• Therefore, the mass of 1 mole of water = 18g