Advertisements
Advertisements
प्रश्न
Calculate the molecular mass of the following:
(NH4)2CO3
Given atomic mass of Cu = 63·5, H = 1, O= 16, C = 12, N = 14, Mg = 24, S = 32
Advertisements
उत्तर
Molecular mass of (NH4)2CO3
= (2 × 14) + (8 × 1) + 12 + (3 × 16)
= 28 + 8 + 12 + 48
= 96
APPEARS IN
संबंधित प्रश्न
Calculate the molecular mass of O2.
Calculate the molecular mass of CH3OH.
Calculate the molecular mass of chloroform (CHCl3). (Atomic masses : C = 12 u ; H = 1 u ; Cl = 35.5 u)
Calculate the molecular masses of the following compounds :
Methane, CH4
(Atomic masses : C = 12 u ; H = 1 u)
How many moles are there in 34.5 g of sodium ? (Atomic mass of Na = 23 u)
Calculate the molecular mass of the following:
(NH₄)₂SO₄
[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]
Calculate the weight/mass of an atom of oxygen.
From the equation
\[\ce{3Cu + 8HNO3 -> 3Cu(NO3)2 + 4H2O + 2NO}\]
(Atomic mass Cu = 64, H = 1, N = 14,O = 16)
Calculate the mass of copper needed to react with 63g of HNO3.
Write the name of the following compound and deduce its molecular mass.
K2CO3
Write the name of the following compound and deduce its molecular mass.
MgCl2
