Advertisements
Advertisements
प्रश्न
Calculate the percentage of water of crystallization in CuSO4. 5H2O
(H = 1, O = 16, S = 32, Cu = 64)
Advertisements
उत्तर
Molar mass of CuSO4.5H2O = ( 64 ) + ( 32 ) + (9 x 16) + (10 x 1) = 250
Molar mass of 5.H2O molecules = ( 10 x 1) + ( 5 x 16) = 90
Percentage of water of Crystallisation = `[ 90 xx 100]/250` = 36%
APPEARS IN
संबंधित प्रश्न
Identify the term or substance based on the descriptions given below:
The property by virtue of which the compound has the same molecular formula but different structural formulae.
If the empirical formula of a compound is CH and it has a vapor density of 13, find the molecular formula of the compound.
A compound made up of two elements X and Y has an empirical formula X2Y. If the atomic weight of X is 10 and that of Y is 5 and the compound ha a vapor density 25, find its molecular formula.
Ethane burns in oxygen to form CO2 and H2O according to the equation:
`2C_2H_6+7O_2 -> 4CO_2 + 6H_2O`
If 1250 cc of oxygen is burnt with 300 cc of ethane.
Calculate:
1) the volume of `CO_2` formed
2) the volume of unused `O_2`
Give the empirical formula of C6H6.
The percentage composition of sodium phosphate, as determined by analysis is : 42.1% Na, 18.9% P, 39% of O. Find the empirical formula of the compound.
[H =1, N =14, Na = 23, P = 31, Cl = 35.5, Pt = 195]
A compound of X and Y has the empirical formula XY2. Its vapour density is equal to its empirical formula weight. Determine its molecular formula.
Explain the term empirical formula.
Give the empirical formula of C6H18O3
Calculate:
Write the empirical formula of C8H18.
