Advertisements
Advertisements
Questions
Calculate the molecular mass of the following:
CuSO4·5H2O
Given atomic masses of Cu = 63·5, H = 1, O = 16, C = 12, N = 14, Mg = 24, S = 32
Calculate the molecular mass of the following compound:
CuSO4·5H2O
Advertisements
Solution
Atomic Masses: Cu = 63.5, S = 32, O = 16, H = 1
63.5 + 32 + (4 × 16) + 5 × [(2 × 1) + 16]
= 63.5 + 32 + 64 + 90
= 249.5 u
RELATED QUESTIONS
Calculate the molecular mass of C2H6.
Calculate the molecular mass of ethanoic acid, CH3COOH.
(Atomic masses: C = 12 u; H = 1 u; O = 16 u)
Calculate the molecular masses of the following compounds :
Hydrogen sulphide, H2S
What is meant by the ‘molar mass’ of a substance ? State the unit in which molar mass is usually expressed.
Calculate the molecular mass of the following:
(NH2)2CO
Given atomic mass of Cu = 63·5, H = 1, O= 16, C = 12, N = 14, Mg = 24, S = 32
Calculate the molecular mass of the following:
Mg3N2
Given atomic mass of Cu = 63·5, H = 1, O = 16, C = 12, N = 14, Mg = 24, S = 32
Choose the correct answer from the options given below.
In water, the hydrogen-to-oxygen mass ratio is
Calculate the molecular mass of the following:
Potassium Chlorate.
At mass : C = 12, H = 1, O = 16, Cl = 35.5, N = 14, Cu = 63.5, S = 32, Na = 23, K = 39, Pt = 195, Ca = 40, P = 31, Mg = 24]
Urea [CO(NH2)2] is an important nitrogenous fertilizer. Urea is sold in 50 kg sacks. What mass of nitrogen is in one sack of urea?
Write the name of the following compound and deduce its molecular mass.
AlPO4
