4. 25.0 mL of an unknown acidic solution was titrated with 42.7 mL of a 0.15 M NaOH solution. What is the M of the unknown acid? Show your calculation below.
4. 25.0 mL of an unknown acidic solution was titrated with 42.7 mL of a 0.15 M NaOH solution. What is the M of the unknown acid? Show your calculation below.
Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
Problem 1P
Related questions
Question
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![**Name:** Victoria Zunter
---
**Pre-Lab Questions**
1. An unknown solution turned a strip of red litmus paper blue. Is this solution acidic or basic?
- **Answer:** Basic
2. Which solution: 0.20 M NaOH or 0.20 M HCl, would you use to titrate an unknown solution that turned blue litmus paper red?
- **Answer:** 0.20 M HCl
3. A burette had an initial volume of 5.2 mL and a final volume of 32.6 mL, what is the amount of solution from the burette that was used? Show your calculation below.
- **Calculation:** V₂ - V₁ = 32.6 mL - 5.2 mL = **27.4 mL**
4. 25.0 mL of an unknown acidic solution was titrated with 42.7 mL of a 0.15 M NaOH solution. What is the M of the unknown acid? Show your calculation below.
- **Answer:** (Calculation required)
5. What is the Normality of 0.25 M H₂SO₄?
- **Answer:** (Calculation required)
6. What is the N of 0.45 M Mg(OH)₂?
- **Answer:** (Calculation required)
7. Using the formulas provided for you in the lab introduction, fill the missing areas in the following table:
| pH | pOH | [H⁺] | [OH⁻] |
|----|-----|-----------|----------|
| 3.7| 8.5 | 1.7x10⁻³ | 3.2x10⁻⁸|
**Show 1 row of calculations, below:**
- **Note:** Calculations for missing values are required based on the provided pH and pOH relationships and conversions.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9c9a1d07-5dae-4ff1-9545-cf26beba5570%2F4854cf8e-93eb-4795-89e8-2d4e4f22581e%2F7qltsc_processed.jpeg&w=3840&q=75)
Transcribed Image Text:**Name:** Victoria Zunter
---
**Pre-Lab Questions**
1. An unknown solution turned a strip of red litmus paper blue. Is this solution acidic or basic?
- **Answer:** Basic
2. Which solution: 0.20 M NaOH or 0.20 M HCl, would you use to titrate an unknown solution that turned blue litmus paper red?
- **Answer:** 0.20 M HCl
3. A burette had an initial volume of 5.2 mL and a final volume of 32.6 mL, what is the amount of solution from the burette that was used? Show your calculation below.
- **Calculation:** V₂ - V₁ = 32.6 mL - 5.2 mL = **27.4 mL**
4. 25.0 mL of an unknown acidic solution was titrated with 42.7 mL of a 0.15 M NaOH solution. What is the M of the unknown acid? Show your calculation below.
- **Answer:** (Calculation required)
5. What is the Normality of 0.25 M H₂SO₄?
- **Answer:** (Calculation required)
6. What is the N of 0.45 M Mg(OH)₂?
- **Answer:** (Calculation required)
7. Using the formulas provided for you in the lab introduction, fill the missing areas in the following table:
| pH | pOH | [H⁺] | [OH⁻] |
|----|-----|-----------|----------|
| 3.7| 8.5 | 1.7x10⁻³ | 3.2x10⁻⁸|
**Show 1 row of calculations, below:**
- **Note:** Calculations for missing values are required based on the provided pH and pOH relationships and conversions.
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