Advertisements
Advertisements
प्रश्न
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.
Advertisements
उत्तर
Empirical formula = X2Y
Atomic Weight (X) = 10
Atomic Weight (Y) = 5
Empirical Formula Weght = 2 × 10 + 5 = 25
So, n = `"Molecular weight"/"Empirical formula weight" = (2xx"V.D")/"Empirical formula weight"`
`n = (2 xx 25)/25 = 2`
So Molecular Formula = (X2Y) × 2 = X4Y2
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.
A gaseous hydrocarbon contains 82.76% of carbon. Given that its vapor density is 29, find its molecular formula. [C = 12, H = 11]
Give the empirical formula of: C6H12O6
Give example of compound whose:
Empirical formula is different from the molecular formula.
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]
Determine the empirical formula of a compound containing 47.9‰ K, 5.5‰ beryllium and 46.6‰ fluorine by mass.
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.
A compound is formed by 24 g of X and 64 g of oxygen. If the atomic mass of X = 12 and O = 16, calculate the simplest formula of the compound.
The Empirical formula of an organic compound is CHCl2.
If its relative molecular mass is 168, what is its molecular formula?
[At. Wt. C = 12, H = 1, Cl = 35.5]
