Advertisements
Advertisements
Question
Calculate the molecular mass of CH4.
Advertisements
Solution
Molecular mass of CH4 = Atomic mass of C + 4 × Atomic mass of H
= 12 + 4 × 1
= (12 + 4) u
= 16 u
APPEARS IN
RELATED QUESTIONS
Calculate the formula unit mass of ZnO given the atomic mass of:
- Zn = 65 u
- Na = 23 u
- K = 39 u
- C = 12 u
- O = 16 u
What is the significance of the formula H2O ?
Calculate the molecular mass of ethanoic acid, CH3COOH.
(Atomic masses : C = 12 u ; H = 1 u ; O = 16 u)
Calculate the molecular mass of hydrogen bromide (HBr). (Atomic masses : H = 1 u ; Br = 80 u)
Calculate the molecular masses of the following compounds :
Ethane, C2H6
(Atomic masses : C = 12 u ; H = 1 u)
Choose the correct answer from the options given below.
In water, the hydrogen-to-oxygen mass ratio is
Calculate:
The gram molecular mass of chlorine if 308cm3 of it at STP weighs 0.979 g.
Calculate:
The volume of 4g of H2 at 4 atmosphere.
Calculate the weight/mass of an atom of hydrogen.
Calculate the relative molecular mass of CaSO4 [Zn = 65, S=32, O = 16, Ca = 40, C = 12]
