Question

1.8 mL জলে কত মােল জলের অণু আছে গণনা করাে।​

Answer 1

At ordinary temperature, density of water = 1 gm/mL

Mass of 1.8 mL of water = 1.8 × 1 gm = 1.8 gm

Clearly, 1.8 gm of H2O contains 0.1 mole of H2O molecules