General Chemistry 2 Midterm Exam Prep Part 2 of 3 | Practice Questions & Video Solutions

General Chemistry 2 Midterm - Part 2 of 3

Problem 1
Problem 2
Problem 3
Problem 4
Problem 5
Problem 6
Problem 7
Problem 8
Problem 9
Problem 10
Problem 11
Problem 12
Problem 13
Problem 14
Problem 15
Problem 16
Problem 17
Problem 18
Problem 19
Problem 20

General Chemistry 2 Midterm - Part 2 of 3

Welcome to the General Chemistry 2 Midterm - Part 2 of 3 practice set!

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General Chemistry 2 Midterm - Part 2 of 3

20 problems

1PRACTICE PROBLEM

All of the following are properties of an acid except:

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2PRACTICE PROBLEM

Ibuprofen is a nonsteroidal anti-inflammatory drug. Its molecular formula is C₁₃H₁₈O₂ with a molecular structure shown below. Is a solution of Ibuprofen acidic, neutral or basic?

Molecular structure of Ibuprofen (C13H18O2) for acid-base identification.

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3PRACTICE PROBLEM

Using the periodic trends, arrange the acids from weakest to strongest

H₂S

HCl

H₂Te

NH₄⁺

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4PRACTICE PROBLEM

Consider an oxyacid with the formula HXO₄. How does the acidity change with increasing electronegativity of X?

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5PRACTICE PROBLEM

Encircle the weaker base between the two. Explain why.

HSe⁻or HS⁻

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6PRACTICE PROBLEM

Identify whether H₃PO₄is an Arrhenius acid or an Arrhenius base and write a chemical equation showing it is an acid or base.

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7PRACTICE PROBLEM

Identify the conjugate base of HClO₄

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8PRACTICE PROBLEM

Identify the strongest Lewis acid among the following: BCl₃, BF₃, BI₃, BBr₃.

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9PRACTICE PROBLEM

Like all equilibrium constants, the value of K_w depends on temperature. At body temperature (37 °C), K_w = 2.4×10⁻¹⁴. What are the [H₃O⁺] and pH of pure water at body temperature?

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10PRACTICE PROBLEM

Which conjugate acid-base pair will complete the following equation resulting in K_eq < 1?

__ + F^– ⇌ __ + HF

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11PRACTICE PROBLEM

Calculate pH, [H₃O⁺], and [OH^–] for a solution that is 0.026 M HCl and 0.018 M HBr.

12PRACTICE PROBLEM

Which of the following statement is true for NaNO₃?

13PRACTICE PROBLEM

Hypochlorous acid (HOCl) is produced when chlorine gas (Cl₂) dissolves in water:

Cl₂(g) + H₂O(l) ⇌ HOCl(aq) + HCl(aq)

The solubility of chlorine in water at 30 °C is 0.576 g/100 mL. Calculate the pH and the concentrations of all species (H₃O⁺, OH^–, HOCl, OCl^–, and Cl^–) in a saturated chlorine solution at this temperature. Assume that all chlorine reacts with water. (K_a of HOCl = 2.95×10^–8)

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14PRACTICE PROBLEM

What is the K_b for a 0.200 M solution of CH₃NH₂ with a pH of 11.961?

15PRACTICE PROBLEM

What is the pH of a 0.15 M hydrogen selenite ion, HSeO₃⁻, if its K_a and K_b values are 4.8×10⁻⁹ and 4.2×10⁻¹², respectively?

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16PRACTICE PROBLEM

Calculate the [H₃O⁺] and pH of 0.315 M H₂SO₃.

17PRACTICE PROBLEM

Identify the conjugate acid and base of H₂PO₃^–.

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18PRACTICE PROBLEM