Tag: empirical formula, percentage composition and molecular formula
Questions Related to empirical formula, percentage composition and molecular formula
What changes does not occur in presence of organic solvent when acidified $K _{2}Cr _{2}O _{7}$ reacts with $H _{2}O _{2}$ solutions
From $\ 2 \ mg$ calcium $1.2\times 10^{19}$ atoms are removed. The number of $g$ - atoms of calcium left is $(Ca=40)$:
Find the mass percentages (mass %) of Na, H, C, and O in sodium hydrogen carbonate.
Determine the percentage composition of $K$ in $KMnO _4$.
Given:
Mass of beaker is X g
Mass of beaker + mixture is Y g
Mass of washed and dried sand is Z g
Find the percentage of sand in the mixture.
If the % composition of a 'x' component is 35%, find the mass of the dried 'x' component in 100g? mixture + beaker = 50 g, mass of beaker = 23 g
The mass of a sand and powdered mixture along with a beaker is 56 g. If the mass of the dried mixture is 20 g, find the % composition of the mixture in 100 g?
(weight of beaker = 20 g).
Calculate the % composition of Carbon in $CO _2$. Molar mass is 44.01.
If the % composition of Cl in HCl is 46%, what is the mass of Cl in HCl?
Mass of beaker=20 g
Mass of beaker+mixture=50 g
Mass of washed and dried sand=5 g
Find the percentage of sand in the mixture.