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Test Chemistry: Time 2.5 Hrs CH# 08 Acids, Bases and Salts MCQ's 10 1

The document is a chemistry test covering acids, bases and salts. It includes 10 multiple choice questions and 10 short answer questions. The short answer questions cover differentiating acids, bases and salts, explaining how ammonia is a Bronsted base, identifying acids, bases, conjugate acids and bases in chemical equations, calculating pH from concentrations, proving relationships between pH, pKa, and dissociation constants, and explaining buffer solutions and the leveling effect. The final question asks students to calculate the pH of a buffer solution containing sodium acetate and acetic acid.

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Moeed Sheikh
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47 views1 page

Test Chemistry: Time 2.5 Hrs CH# 08 Acids, Bases and Salts MCQ's 10 1

The document is a chemistry test covering acids, bases and salts. It includes 10 multiple choice questions and 10 short answer questions. The short answer questions cover differentiating acids, bases and salts, explaining how ammonia is a Bronsted base, identifying acids, bases, conjugate acids and bases in chemical equations, calculating pH from concentrations, proving relationships between pH, pKa, and dissociation constants, and explaining buffer solutions and the leveling effect. The final question asks students to calculate the pH of a buffer solution containing sodium acetate and acetic acid.

Uploaded by

Moeed Sheikh
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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TEST CHEMISTRY

Time 2.5 hrs CH# 08 Acids, Bases and Salts

MCQs 10X1

Short answers questions. 10X3

1. Differentiate between acids, bases and salts.

2. Explain how ammonia is Bronsted base.

3. Identify acid, base conjugate acid and conjugate base in following.

(a) H2O + NH+14 NH3 + H3O+1

(b) H2O + H2O OH-1 + H3O+1

(c) HClO4 + H2O H3O+1 + ClO4-1

4. The concentration of [OH-] ion in a household ammonia solution is .005M. Calculate the

concentration of [H+] in it.

5. Prove that pH + pOH = 14

6. Ka values of HI, HF, H2SO4 and HCl are 1.0x1010, 1.0x10-4, 1.0x103 and 1.0x106 respectively.

Find their pKa values and identify the strongest and weakest acid.

7. Prove that for a reaction of acid and base sum of their dissociation constants is equal to 14.

8. Write applications of buffer solutions.

9. Explain leveling effect.

10. Calculate the pH of buffer solution in which .11 Molar CH3COONa and .09 Molar CH3COOH

solutions are present.

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