Welcome to your Chemistry
1.
In the extraction of Aluminium, the silica impurity is removed by
2.
At a given temperature and pressure, a gas X diffuses twice as fast as gas...
3.
The number of molecules of helium gas contained in 11.5g of the gas is
4.
The quantity of electricity required to deposit 180g of Ag from a molten silver trioxonitrate(V) is
5.
How many isomers has the organic compound represented by the formula C_3H_8O ?
6.
The empirical formula of an organic liquid hydrocarbon is XY. If the relative molar masses of X and Y are 72 and 6 respectively, it's vapour density is likely to be
7.
Silver and Gold are metals found as free uncombined elements in the earth's crust, which makes them to be referred to as
8.
An organic compound contains 53.1% Carbon, 6.2% Hydrogen, 12.4% Nitrogen, and 28.3% Oxygen by mass. What is the molecular formula of the compound if its vapour density is 56.5? [ C =12, H = 1, N = 14, O = 16].
