Exam 2: Chem120/ Chem 120 (Latest 2025/ 2026 Update) Introduction to General, Organic & Biological Chemistry |Questions with Verified Answers| Grade A| 100% Correct – Chamberlain.

Exam 2: Chem120/ Chem 120 (Latest 2025/ 2026i,- i,- i,- i,- i,- i,- i,- i,-




Update) Introduction to General, Organic & i,- i,- i,- i,- i,- i,-




Biological Chemistry |Questions with Verified i,- i,- i,- i,- i,-




Answers| Grade A| 100% Correct – Chamberlain. i,- i,- i,- i,- i,- i,-




A chemist dissolves 24 grams of CaCl₂ (molecular mass 110.98
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g/mol) in water to prepare a solution with a total volume of 360
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mL. i,-




What is the molarity of this solution?
i,- i,- i,- i,- i,- i,-




a.) 308 M
i,- i,-




b.) 66.7 M
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c.) 0.0006 M
i,- i,-




d.) 0.6 M
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e.) 0.3 M
i,- i,- i,-i,- i,- d.) 0.6 M i,- i,-




What formula would you use to prepare a dilute solution from a
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-



concentrated solution? i,-




a.) M= mol/L
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b.) C₁V₁= C₂V₂
i,- i,-




c.) g/mL x 100
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d.) g/mol
i,- i,-i,- i,- b.) C₁V₁= C₂V₂i,- i,-

,You are preparing a solution from 750 L of a 3.0 M NaCl solution.
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-




How many L of a 1.5 m NaCl solution could you produce by
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diluting the original solution i,- i,- i,- i,-




a.) 0.006 L
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b.) 6 L
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c.) 1500 L
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d.) 375 L
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e.) 3000 L
i,- i,- i,-i,- i,- c.) 1500 L
i,- i,-




How many ions would you expect MgBr₂ to break down into in
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water?
a.) 3
i,-




b.) 1
i,-




c.) 2
i,-




d.) 4
i,- i,-i,- i,- a.) 3 i,-




What is the molar mass of CaSO₄?
i,- i,- i,- i,- i,- i,-




a.) 232.35 g/mol
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b.) 136.14 g/mol
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c.) 104.08 g/mol
i,- i,-




d.) 82.12 g/mol
i,- i,- i,-i,- i,- b.) 136.14 g/mol
i,- i,-

, Based on the balanced chemical equation: 2 NH₃ + 3 CuO→ 3 Cu
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+ N₂ + H₂O
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Which of the following statements is NOT true:
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a.) CuO is a reactant
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b.) H₂O is a reactant
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c.) NH₃ is a reactant
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d.) Cu is a product
i,- i,- i,- i,- i,-i,- i,- H₂O is a reactant
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How many atoms of oxygen are there in the molecule Al₂(SO₄)₃?
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a.) 12 i,-




b.) 4 i,-




c.) 3 i,-




d.) 7 i,- i,-i,- i,- a.) 12 i,-




How many grams of H₂O are in 0.2 moles of H₂O (molar mass
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18.01 g/mol)? i,-




a.) 3.6 grams
i,- i,-




b.) 1.8 grams
i,- i,-




c.) 0.45 grams
i,- i,-




d.) 0.02 grams
i,- i,- i,-i,- i,- a.) 3.6 g/mol
i,- i,-