Dr E. Ramanathan PhD
Concept Video Lecture
Saitechinfo NEET JEE Academy
Chemistry Worksheet – Mass Ratio & Stoichiometric Calculations
Answer Key: Provided Separately via QR Code
Do not write answers on the question sheet. Show full working in your notebook.
1. How much oxygen is required to completely burn 24 g of carbon?
2. How many grams of H₂O are formed when 8 g of hydrogen reacts with excess oxygen?
3. How much aluminium oxide is formed when 54 g of aluminium reacts with oxygen?
4. If 100 g of CaCO₃ decomposes, how many grams of CO₂ are released?
5. How many grams of Fe₂O₃ are produced from 112 g of iron in oxidation?
6. How many grams of NaCl are produced from 46 g of NaOH reacting with HCl?
7. Calculate the mass of SO₂ formed when 32 g of sulfur reacts with oxygen.
8. Determine the amount of CO₂ produced when 88 g of propane (C₃H₈) is combusted.
9. What is the mass of Ca(OH)₂ formed from 56 g of CaO reacting with water?
10. How many grams of magnesium chloride are formed from 24 g of Mg reacting with HCl?
11. When 36 g of water decomposes, what mass of hydrogen and oxygen are formed?
12. Find the mass of ammonia formed from 28 g of nitrogen reacting with excess hydrogen.
13. How much CuO is required to react with 12.7 g of Cu in reduction?
14. What is the mass of BaSO₄ formed when 233 g of BaCl₂ reacts with H₂SO₄?
15. How many grams of PbSO₄ are formed when 207 g of Pb reacts with H₂SO₄?
Answer Key
Limiting Reagent Problems
Saitechinfo NEET JEE Academy – Limiting Reagent Practice Problems (15 Questions)
- 5 mol of H₂ reacts with 2 mol of O₂. Which is the limiting reagent?
- 10 g of hydrogen reacts with 80 g of oxygen. Identify the limiting reagent.
- 6 mol of aluminum reacts with 10 mol of HCl. Determine the limiting reagent.
- 20 g of Ca reacts with 25 g of Cl₂. Which is the limiting reagent?
- 4 mol of NH₃ reacts with 3 mol of O₂. Find the limiting reagent.
- 50 g of Na reacts with 100 g of Cl₂. Identify the limiting reagent.
- 3 mol of Fe reacts with 4 mol of O₂. Determine the limiting reagent.
- 2 mol of C reacts with 2 mol of O₂ to form CO₂. Which is limiting?
- 100 g of CH₄ burns in 300 g of O₂. Find the limiting reagent.
- 0.5 mol of Mg reacts with 1 mol of HCl. Determine the limiting reagent.
- 5 mol of SO₂ reacts with 2 mol of O₂. Which is the limiting reagent?
- 8 g of CH₄ burns in 32 g of O₂. Identify the limiting reagent.
- 2 mol of Zn reacts with 3 mol of HCl. Find the limiting reagent.
- 10 g of C reacts with 20 g of O₂. Determine the limiting reagent.
- 4 mol of N₂ reacts with 10 mol of H₂. Which is the limiting reagent?
Scan me for key
