Question

Determine the mass of 4*10^23 number of H2O molecules

Answer 1

Answer:

18 g of water molecules is equal to 6.02×10²³ no. of molecules

then for 4×10²³ molecules,

divide both sides by 6.02 × 10²³ and then multiply both sides by 4×10²³,

therefore , (6.02 × 10²³/6.02 × 10²³) × 4×10²³

= (18÷6.02 × 10²³)× 4×10²³ g

= 11.96 g

if it is useful mark it as brainliest answer and follow me for best answers