Advertisements
Advertisements
प्रश्न
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.
Advertisements
उत्तर
Mass of X in the given compound =24 g
Mass of oxygen in the given compound =64 g
So total mass of the compound =24 + 64 = 88 g
% of X in the compound = `24/88 xx100` = 27.3%
% of oxygen in the compound = `64/88 xx100` =72.7%
| Element | %age | Atomic weight | Atomic ratio | Simplest ratio |
| X | 27.3 | 12 | `27.3/12` = 2.27 | `2.27/2.27` = 1 |
| O | 72.7 | 16 | `72.7/16` = 4.54 | `4.54/2.27` = 2 |
So, simplest formula of the compound = XO2
संबंधित 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.
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.
Give example of compound whose:
Empirical formula is the same as 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]
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]
Calculate the percentage of water of crystallization in CuSO4. 5H2O
(H = 1, O = 16, S = 32, Cu = 64)
Find the percentage of mass water in Epsom salt MgSO4.7H2O.
Pratik heated 11.2 grams of element ‘M’ (atomic weight 56) with 4.8 grams of element 'N' (atomic weight 16) to form a compound. Find the empirical formula of the compound obtained by Pratik.
A compound has the following percentage composition by mass: carbon 14.4%, hydrogen 1.2% and chlorine 84.5%. By what type of reaction could this compound be obtained from ethylene?
