Advertisements
Advertisements
Question
Calculate the relative molecular masses of the following
CHCI3
[At mass : C = 12, H = 1, O = 16, Ci = 35.5, N = 14, Cu = 63.5, S = 32, K = 39, Pt = 195, Ca = 40, P = 31, Mg = 24]
Advertisements
Solution
molecular mass of chloroform (CHCl3)
= mass of carbon + mass of hydrogen + 3 x mass of chlorine
= 12 + 1 + 3 x 35.5
= 119.5g
APPEARS IN
RELATED QUESTIONS
Calculate the molecular mass of O2.
Calculate the molecular mass of Cl2.
Calculate the molecular mass of CO2.
Calculate the formula unit mass of Na2O given the atomic mass of
- Zn = 65 u
- Na = 23 u
- K = 39 u
- C = 12 u
- O = 16 u
Calculate the formula unit mass of K2CO3 given the atomic mass of
- Zn = 65 u
- Na = 23 u
- K = 39 u
- C = 12 u
- O = 16 u
Calculate the molecular masses of the following :
Ammonia, NH3
(Atomic masses : H = 1 u ; O = 16 u ; Cl = 35.5 u ; N = 14 u ; C = 12 u)
Write the name of the following compound and deduce its molecular mass.
Na2SO4
A gas cylinder of capacity of 20 dm3 is filled with gas X the mass of which is 10 g. When the same cylinder is filled with hydrogen gas at the same temperature and pressure the mass of the hydrogen is 2 g, hence the relative molecular mass of the gas is ______.
Calculate the relative molecular mass of CaSO4.
[S = 32, O = 16, Ca = 40]
The formula unit mass of Ca3 (PO4)2 is ————.
