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1. Determine the molar mass of (a) MgSO4. (NH4)₂CO4 2. What is the percentage of Ca in CaSO4 3. How many moles of (a) CO₂ in 132g of CO₂ and (b) moles of O₂ in 128g O₂ 4. What is the Empirical formula of (a) Glucose, C6H₁2O6 and Cyclohexane C6H₁2 (b) 5. How do you detect the presence of (a) NH4+ ion; (b) CO32- ion ; (c) SO4²- ion 6. Zn is 65.4g/mol, what is number of atoms for 0.2g of Zn using the Avogadro's number. 7. Consider the combustion reaction of methane, CH4 . If 2.1 mol of methane is allowed to react with 4.0 mol of oxygen, which is the limiting reagent? 8. Ethane, C₂H6 react with O₂ to give CO₂ and H₂O. If 5 mols of Ethane is placed with 16 mols of O₂, how many mols of CO₂ will be produced.

1. Determine the molar mass of (a) MgSO4. (NH4)₂CO4 2. What is the percentage of Ca in CaSO4 3. How many moles of (a) CO₂ in 132g of CO₂ and (b) moles of O₂ in 128g O₂ 4. What is the Empirical formula of (a) Glucose, C6H₁2O6 and Cyclohexane C6H₁2 (b) 5. How do you detect the presence of (a) NH4+ ion; (b) CO32- ion ; (c) SO4²- ion 6. Zn is 65.4g/mol, what is number of atoms for 0.2g of Zn using the Avogadro's number. 7. Consider the combustion reaction of methane, CH4 . If 2.1 mol of methane is allowed to react with 4.0 mol of oxygen, which is the limiting reagent? 8. Ethane, C₂H6 react with O₂ to give CO₂ and H₂O. If 5 mols of Ethane is placed with 16 mols of O₂, how many mols of CO₂ will be produced.

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1. Determine the molar mass of (a) MgSO₄ (b) (NH₄)₂CO₄ 2. What is the percentage of Ca in CaSO₄? 3. How many moles of (a) CO₂ in 132g of CO₂ (b) moles of O₂ in 128g O₂ 4. What is the empirical formula of (a) Glucose, C₆H₁₂O₆ and Cyclohexane, C₆H₁₂ 5. How do you detect the presence of: (a) NH₄⁺ ion (b) CO₃²⁻ ion (c) SO₄²⁻ ion 6. Zn is 65.4g/mol. What is the number of atoms for 0.2g of Zn using Avogadro’s number? 7. Consider the combustion reaction of methane, CH₄. If 2.1 mol of methane is allowed to react with 4.0 mol of oxygen, which is the limiting reagent? 8. Ethane, C₂H₆, reacts with O₂ to give CO₂ and H₂O. If 5 mols of ethane are placed with 16 mols of O₂, how many mols of CO₂ will be produced?
Transcribed Image Text:1. Determine the molar mass of (a) MgSO₄ (b) (NH₄)₂CO₄ 2. What is the percentage of Ca in CaSO₄? 3. How many moles of (a) CO₂ in 132g of CO₂ (b) moles of O₂ in 128g O₂ 4. What is the empirical formula of (a) Glucose, C₆H₁₂O₆ and Cyclohexane, C₆H₁₂ 5. How do you detect the presence of: (a) NH₄⁺ ion (b) CO₃²⁻ ion (c) SO₄²⁻ ion 6. Zn is 65.4g/mol. What is the number of atoms for 0.2g of Zn using Avogadro’s number? 7. Consider the combustion reaction of methane, CH₄. If 2.1 mol of methane is allowed to react with 4.0 mol of oxygen, which is the limiting reagent? 8. Ethane, C₂H₆, reacts with O₂ to give CO₂ and H₂O. If 5 mols of ethane are placed with 16 mols of O₂, how many mols of CO₂ will be produced?
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