Question

Two elements, Pumpkinium (Pm) and Candium (Cn).
combine to form several Compounds including
Pm2Cn3 & Pm2Cn5. A 254 g sample of Pm2Cn3 has
6.77 x 1024 atoms total. a. Find the relative mass of
Pm to Cn in Pm2Cn3 when you have 45.6 g Pm &
23.1 g Cn.​

Answer 1

Answer:

(a)

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.

(b)

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.