Advertisements
Advertisements
Question
Calculate the molecular mass of C2H6.
Solution
Molecular mass of C2H6 = 2 × Atomic mass of C + 6 × Atomic mass of H
= (2 × 12 + 6 × 1) u
= (24 + 6) u
= 30 u
APPEARS IN
RELATED QUESTIONS
Calculate the molecular mass of O2.
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 :
Ethanol, C2H5OH
Convert 12 g of oxygen gas into moles.
Calculate the molecular mass of the following:
CH3COONa
[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]
Calculate the molecular mass of the following:
Ammonium chloroplatinate (NH4)2 PtCl6
[At mass: C = 12, H = 1, O = 16, Cl = 35.5, N = 14, Cu = 63.5, S = 32, K = 39, Pt = 195, Ca = 40, P = 31, Mg = 24]
Calculate:
The mass of oxygen in 2.2 litres of CO2 at STP.
Calculate the weight/mass of an atom of hydrogen.
What is the SI prefix for each of the following multiples and submultiples of a unit?
- 103
- 10–1
- 10–2
- 10–6
- 10–9
- 10–12
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.
