Advertisements
Advertisements
Question
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]
Advertisements
Solution
Empirical formula of compound :
| Element | Atomic mass | Percentage | Relative Number of moles | Simplest mole ratio | Whole number ratio |
| C | 12 | 4.8 | 4.8/12 = 0.4 | 0.4/0.4 = 1 | 1 |
| Br | 80 | 95.2 | 95.2/80 = 1.19 | 1.19/0.4 = 3 | 3 |
Empirical formula of the compound is CBr3.
APPEARS IN
RELATED QUESTIONS
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 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.
Explain the terms empirical formula and molecular formula.
Give the empirical formula of: C6H12O6
Give the empirical formula of C2H2
Give the empirical formula of CH3COOH
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)
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]
