Advertisements
Advertisements
प्रश्न
Calculate the relative molecular masses of the following
(NH4)2 Cr2O7
[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]
उत्तर
For Relative Molecular Mass, (NH₄)₂Cr₂O₇
= 2(14 + 4 × 1) + 2 × 52 + 7 × 16
= 2 × 18 + 104 + 112
= 36 + 216
= 252
APPEARS IN
संबंधित प्रश्न
Calculate the molecular mass of H2.
Calculate the molecular mass of NH3.
Calculate the molecular mass of hydrogen bromide (HBr). (Atomic masses : H = 1 u ; Br = 80 u)
Define gram molecular mass of a substance. How much is the gram molecular mass of oxygen ?
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
Calculate the weight/mass of a molecule of NH3.
Calculate the weight/mass of the molecule of oxygen.
Calcium carbonate is decomposed on heating in the following reaction
CaCO3 → CaO + CO2
How many moles of Calcium carbonate is involved in this reaction?
The modem atomic mass scale is based on ______.
A gas occupied 360 cm3 at 87°C and 380 mm Hg pressure. If the mass of gas is 0.546 g, find its relative molecular mass.
