Exams & Certification
The stronger the acid, the __ the conjugate base. A) stronger B) weaker The correct answer and explanation is : The correct answer is: B) weaker Explanation: Acids and bases exist in conjugate pairs, meaning that every acid has a corresponding conjugate base. The strength of an acid is determined by its ability to donate […]
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The grammar with start symbol sentence, set of terminals T = {the, sleepy, happy, tortoise, hare, passes, runs, quickly, slowly}, set of nonterminals N = {noun phrase, transitive verb phrase, intransitive verb phrase, article, adjective, noun, verb, adverb}, and productions: sentence → noun phrase transitive verb phrase noun phrase sentence → noun phrase intransitive verb
The right of a water company to lay and maintain water mains along a designated line in the rear of a lot would be called anA encroachment.B easement in grossC accretion right.D appurtenance The correct answer and explanation is : The correct answer is:B. Easement in Gross Explanation: An easement in gross is a legal
Which of the following is the weakest acid? A) HF (Ka for HF is 7.2 × 10-4) B) HCN (Ka for HCN is 4.9 × 10-10) C) HCNO (Ka for HCNO is 2 × 10-4) D) H3BO3 (Ka for H3BO3 is 5.4 × 10-10) The correct answer and explanation is : The weakest acid among
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Which of the following is the strongest acid? A) HF ( Ka for HF is 7.2 × 10-4) B) HCN (Ka for HCN is 4.9 × 10-10) C) HCNO (Ka for HCNO is 2 × 10-10) D) H3BO3 (Ka for H3BO3 is 5.4 × 10-10) The correct answer and explanation is : The strongest acid
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Which of the following is the strongest acid? A) H3PO4 B) NH4+ C) NaOH D) H2CO3 E) HCl The correct answer and explanation is : The correct answer is E) HCl (Hydrochloric acid). Explanation: Acidity is determined by the ability of a substance to donate protons (H⁺ ions) in solution. This strength is measured using
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The conjugate acid of HSO4- is A) SO42-. B) HSO4. C) H2SO4. D) H2SO4-. E) HSO3-. The correct answer and explanation is : The correct answer is: C) H₂SO₄. Explanation: To determine the conjugate acid of HSO₄⁻ (hydrogen sulfate ion), we need to recall the concept of conjugate acid-base pairs. Step 1: Understanding Conjugate Acid-Base
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What is the pH ofa 6.50 x 10-3 M KOH solution?(Hint: this is a basic solution– concentration is of OH-) The correct answer and explanation is : To determine the pH of a 6.50 × 10⁻³ M KOH solution, follow these steps: Step 1: Identify Key Information Step 2: Calculate pOH The pOH is calculated
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What is the pH of a 0.0235 M HCl solution? The correct answer and explanation is : To calculate the pH of a 0.0235 M HCl solution, we use the formula: [\text{pH} = -\log [\text{H}^+]] Since HCl is a strong acid, it fully dissociates in water: [\text{HCl} \rightarrow \text{H}^+ + \text{Cl}^-] Thus, the concentration of
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The conjugate base of HClO3 is A) HClO2. B) ClO3-. C) Cl(OH)2. D) ClO3. E) HClO. The correct answer and explanation is : The correct answer is:B) ClO₃⁻ (Chlorate ion). Explanation: To determine the conjugate base of HClO₃ (chloric acid), we need to recall the Brønsted-Lowry acid-base theory, which states that an acid donates a
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