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Calculate the molecular masses ofH_2, O_2, Cl_2, CO_2, CH_4, C... - Science
Question
Calculate the molecular masses ofH_2, O_2, Cl_2, CO_2, CH_4, C_2H_6, C_2H_4, NH_3, CH_3OH.
Answer
\text{H}_2:2 \times 1 = \mathbf{2 \text{ u}}\text{O}_2:2 \times 16 = \mathbf{32 \text{ u}}\text{Cl}_2:2 \times 35.5 = \mathbf{71 \text{ u}}\text{CO}_2:12 + (2 \times 16) = \mathbf{44 \text{ u}}\text{CH}_4:12 + (4 \times 1) = \mathbf{16 \text{ u}}\text{C}_2\text{H}_6:(2 \times 12) + (6 \times 1) = \mathbf{30 \text{ u}}\text{C}_2\text{H}_4:(2 \times 12) + (4 \times 1) = \mathbf{28 \text{ u}}\text{NH}_3:14 + (3 \times 1) = \mathbf{17 \text{ u}}\text{CH}_3\text{OH}:12 + (3 \times 1) + 16 + 1 = \mathbf{32 \text{ u}}