Advertisements
Advertisements
प्रश्न
A compound of X and Y has the empirical formula XY2. Its vapor density is equal to its empirical formula weight. Determine its molecular formula.
Advertisements
उत्तर
Given:
Empirical formula = XY2
Vapor density = Empirical formula weight
Molecular formula =?
Molecular weight = n(Empirical formula weight)
= 2 x V.D.
n(Empirical formula weight) = 2 x V.D.
Since Vapour density Empirical formula weight
n = 2
Molecular formula = 2(Empirical formula)
= 2(XY2)
Molecular formula = X2Y4
APPEARS IN
संबंधित प्रश्न
A gaseous hydrocarbon contains 82.76% of carbon. Given that its vapor density is 29, find its molecular formula. [C = 12, H = 11]
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.
Give the appropriate term defined by the statements given below :
The formula that represents the simplest ratio of the various elements present in one molecule of the compound.
Give the empirical formula of C6H6.
A compound of lead has following percentage composition, Pb = 90.66%, O = 9.34%. Calculate empirical formula of a compound. [Pb = 207, O = 16]
Calculate the empirical formula of the compound having 37.6% sodium, 23.1% silicon and 39.3% oxygen.(Answer correct to two decimal places) (O = 16, Na = 23, Si = 28)
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 'X' consists of 4.8% of C and 95.2% of Br by mass.
Determine the empirical formula of this compound.
[C = 12, Br = 80]
0.2 g atom of silicon combine with 21.3 g of chlorine. Find the empirical formula of the compound formed.
