Question

4. Compute the molecular mass of each one of the following and write the corresponding value of gram molecular mass: (i) Water (H2O) Atomic masses. H = 1 u, O = 16 u (ii) Sugar (C2H2,01) Atomic masses. C = 12 u, H = 1 u, O = 16 u (iii) Sodium carbonate (Na2CO3) Atomic masses. Na = 23 u, C = 12 u, O = 16 u (iv) Baking soda (NaHCO3) Atomic masses. Na = 23 u, H = 1 u, C = 12 u, O = 16 u​

Answer 1

The gram molecular mass is the sum of the gram atomic masses.

The atomic mass of H is 1 ans O is 16.

∴ Gram molecular mass = 2×1+16 =18g.

Atoms are tiny particles that make up the universe, while molecules are made from atoms

Atoms make up elements whereas molecules make up compounds.

Molecules are made of atoms. Atoms are made of protons, neutrons, and electrons.

Do same which is left...

Thank u