The reaction $2\mathrm{Al}+6\mathrm{HCl}\to 2\mathrm{AlCl}{}_3+3\mathrm{H}{}_2$ is carried out with 5.4 g of Al and excess HCl ($\mathrm{Al}=27$). The volume of $\mathrm{H}{}_2$ at STP is

More questions on Stoichiometry of single and sequential reactions

• Calcium carbonate decomposes as CaCO3 -> CaO + CO2. The volume of CO2 at STP obtained from 25 g of CaCO3 (M = 100) is NEET level
• Ethane burns as 2C2H6 + 7O2 -> 4CO2 + 6H2O. How many moles of O2 are needed to burn 2 mol of C2H6 completely? NEET level
• For 2H2 + O2 -> 2H2O, 2 mol of H2 is mixed with 1.5 mol of O2 and the reaction goes to completion. The mass of water formed is (H=1, O=16) NEET level
• On strongly heating 10 g of CaCO3 (M=100), 3.08 g of CO2 (M=44) was collected. The percentage yield of CO2 is JEE Main level
• What mass of KClO3 must be decomposed by 2KClO3 -> 2KCl + 3O2 to obtain 6.72 L of O2 at STP? (K=39, Cl=35.5, O=16) JEE Main level
• 11.2 g of iron and 4.8 g of sulphur are heated together to form FeS (Fe + S -> FeS). The maximum mass of FeS formed is (Fe=56, S=32) JEE Main level