In which of the following cases is the weight of the substance the same? — Mole Concept and Some Basic Concepts of Chemistry Chemistry Question

💡 Solution & Explanation

Molar masses: <br>$CO = 12+16 = 28\text{ g/mol}$. <br>$N_2 = 14 \times 2 = 28\text{ g/mol}$. <br>$C_2H_4 = 24+4 = 28\text{ g/mol}$. <br>$Si = 28\text{ g/mol}$. All weigh 28g.