List of top Chemistry Questions on Stoichiometry and Stoichiometric Calculations asked in IPU CET

Beryllium gives a compound X with the following percentage composition: Be = 6.1%, N = 37.8%, Cl = 48%, H = 8.1%. The molecular weight of X is 148 g/mol and that of Be is 9 g/mol. The molecular formula of the compound is:
The combustion of carbon monoxide yields carbon dioxide. The volume of oxygen gas needed to produce 22 g of carbon dioxide at STP is
When Z grams of calcium carbonate completely burnt in air gives 28g of a solid compound, the mass of calcium carbonate used will be:
If a mole of C$_3$H$_8$ is reacted with 2.5 moles of O$_2$ how many moles of H$_2$O will be produced ?
2CrO$_4^{2-}$ + 3SnO$_2^{2-}$ + H$_2$O → 2CrO$_2^{-}$ + 3SnO$_3^{2-}$ + 2OH$^{-}$
How many moles of OH$^{-}$ form when 50.0 mL of 0.100 M CrO$_4^{2-}$ is added to a flask containing 50.0 mL of 0.100 M SnO$_2^{2-}$?