Table of contents

1. Introduction to Biochemistry4h 34m
2. Water3h 23m
3. Amino Acids8h 10m
4. Protein Structure10h 4m
5. Protein Techniques14h 5m
6. Enzymes and Enzyme Kinetics13h 38m
7. Enzyme Inhibition and Regulation 8h 42m
8. Protein Function 9h 41m
9. Carbohydrates7h 49m
10. Lipids5h 49m
11. Biological Membranes and Transport 6h 37m
12. Biosignaling9h 45m
Review 1: Nucleic Acids, Lipids, & Membranes2h 47m
Review 2: Biosignaling, Glycolysis, Gluconeogenesis, & PP-Pathway3h 12m
Review 3: Pyruvate & Fatty Acid Oxidation, Citric Acid Cycle, & Glycogen Metabolism2h 26m
Review 4: Amino Acid Oxidation, Oxidative Phosphorylation, & Photophosphorylation1h 48m

2. Water

Biochemistry

2. Water

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Multiple Choice

Determine the pH of a solution with a [OH^-] of 3 x 10^-4 M. Is the solution basic, acidic or neutral?

pH = 12.9

pH = 10.5

pH = 5.7

pH = 7

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Verified step by step guidance

Understand the relationship between pH, pOH, and the concentration of hydroxide ions [OH-]. The pOH is calculated using the formula: \( \text{pOH} = -\log[\text{OH}^-] \).

Calculate the pOH of the solution by substituting the given [OH-] concentration into the formula: \( \text{pOH} = -\log(3 \times 10^{-4}) \).

Recall the relationship between pH and pOH in aqueous solutions: \( \text{pH} + \text{pOH} = 14 \). Use this equation to find the pH by rearranging it to \( \text{pH} = 14 - \text{pOH} \).

Substitute the calculated pOH value into the equation to find the pH of the solution.

Determine if the solution is acidic, basic, or neutral by comparing the pH value to 7. A pH less than 7 indicates an acidic solution, a pH greater than 7 indicates a basic solution, and a pH of 7 indicates a neutral solution.