Question

1 mole of compound contain 1 mole of cand 2 mole of O the molecular weight of the compound

Answer 1

1 mol of carbon = 1 * Atomic mass of carbon = 12g

2 mol of oxygen = 2 * Atomic mass of oxygen = 2 * 16 = 32g

then, molecular mass of CO2 = 12+32= 44g