Advertisements
Advertisements
प्रश्न
Calculate the relative molecular mass of Chloroform.
(use K = 39, Cl = 35.5, O = 16, C = 12, H = 1, Na = 23, N = 14, S= 32)
उत्तर
The relative molecular mass of Chloroform (CH3Cl) is:
[atomic mass of 1 C atom + Atomic mass of 3 H atom + atomic mass of 1 Cl]
12 + 3 x 1 + 35 .5 = 50 .5
APPEARS IN
संबंधित प्रश्न
Calculate the relative molecular mass of Sodium acetate
(use K = 39, Cl = 35.5, O = 16, C = 12, H = 1, Na = 23, N = 14, S= 32)
What weight of sulphuric acid will be required to dissolve 3g of magnesium carbonate?
[Mg = 24, C =12, 0 = 16 ]
MgCO3 + H2SO4 → MgSO4 + H2O+ CO2
Calculate the percentage of water in ferrous sulphate crystals.
[Fe = 56, S = 32, O =16, H = 1].
10g of NaCl solution is mixed with 17g of silver nitrate solution. Calculate the weight of silver chloride precipitated.
AgNO3 + NaCl → AgCI + NaNO3
Calculate the percentage of nitrogen in aluminium nitride. [Al = 27, N = 14]
A certain gas 'X' occupies a volume of 100 cm3 at S.T.P. and weighs 0.5 g. Find its relative molecular mass.
Give one word or phrase for the following:
The ratio of the mass of a certain volume of gas to the mass of an equal volume of hydrogen under the same conditions of temperature and pressure.
Calculate the relative molecular mass of:
CuSO4. 5H2O
Which of the following contains maximum number of molecules?
The vapour density of CH3OH is ______. (At. Wt. C = 12, H = 1, O = 16)