Advertisements
Advertisements
प्रश्न
The vapour density of CH3OH is ______. (At. Wt. C = 12, H = 1, O = 16)
पर्याय
32
18
16
34
उत्तर
The vapour density of CH3OH is 16. (At. Wt. C = 12, H = 1, O = 16)
Explanation:
Molecular weight = Vapour Density × 2
Molecular weight of CH3OH = 12 + 3 + 16 + 1 = 32
V.D. = `(M.W.)/2 = 32/2` = 16
APPEARS IN
संबंधित प्रश्न
Calculate the percentage composition of oxygen in lead nitrate [Pb(NO3)2]. [Pb = 207, N= 14, O = 16]
The usefulness of a fertilizer depends upon percentage of nitrogen present in it. Find which of the following is a better fertilizer:
(a) Ammonium nitrate [NH4NO3]
(b) Ammonium phosphate [(NH4)3PO4 (N=14,H=1,O=16,P=31)
Potassium nitrate on strong heating decomposes as under :
2KNO3 → 2KNO2 + O2
Calculate : Weight of oxygen formed when 5.05g of potassium nitrate decomposes completely.
(K = 39, 0 = 16, N = 14)
An organic compound has the following percentage composition: C = 12.76%, H = 2.13%, Br = 85.11%. The vapour density of the compound is 94. Find out its molecular formula.
What is the vapour density of ethylene? (Avogadro's number = 6 x 1023; Atomic weight of C = 12, H = 1; Molar volume = 22.4 litres at STP)
Calculate the percentage of sodium in sodium aluminium fluoride (Na3AIF6).
[F = 19, Na = 23, Al = 27]
Find the weight of 0.2 mole of H2 gas.
Calculate the number of hydrogen atoms in 0.1 mole of H2SO4.
Calculate the number of atoms of each kind in 5.3 grams of sodium carbonate.
A gas cylinder filled with hydrogen holds 5 g of the gas. The same cylinder holds 85 g of gas X under the same temperature and pressure. Calculate the vapour density of gas X.