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2.) To make 250mL of 0.5M NaCl, weigh ANSWER grams of NaCl, place in a graduated cylinder, and add water to make the total volume ANSWER mL. 3. To make a 500mL of 2% NaCl, weigh ANSWER grams of NaCl, place in a graduated cylinder, then add water to make the total volume ANSWER mL. 4. (You have a 1 g/mL stock solution of protein. To make 100mL of 200 mg/mL solution, add ANSWER mL of stock and ANSWER mL of water for a final volume of ANSWER mL. (HINT: Convert units)

2.) To make 250mL of 0.5M NaCl, weigh ANSWER grams of NaCl, place in a graduated cylinder, and add water to make the total volume ANSWER mL. 3. To make a 500mL of 2% NaCl, weigh ANSWER grams of NaCl, place in a graduated cylinder, then add water to make the total volume ANSWER mL. 4. (You have a 1 g/mL stock solution of protein. To make 100mL of 200 mg/mL solution, add ANSWER mL of stock and ANSWER mL of water for a final volume of ANSWER mL. (HINT: Convert units)

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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2.) To make 250mL of 0.5M NaCl, weigh ANSWER grams of NaCl, place in a graduated cylinder, and add water to make the total volume ANSWER mL. | 3. To make a 500mL of 2% NaCl, weigh ANSWER grams of NaCl, place in a graduated cylinder, then add water to make the total volume ANSWER mL. | 4. (You have a 1 g/mL stock solution of protein. To make 100mL of 200 mg/mL solution, add ANSWER mL of stock and ANSWER mL of water for a final volume of ANSWER mL. (HINT: Convert units) | 5. (To make 500 mL of 1x Buffer, measure ANSWER mL of 10x stock and add ANSWER mL water to make the total volume ANSWER mL. This is a 1: ANSWER Dilution.
Transcribed Image Text:2.) To make 250mL of 0.5M NaCl, weigh ANSWER grams of NaCl, place in a graduated cylinder, and add water to make the total volume ANSWER mL. | 3. To make a 500mL of 2% NaCl, weigh ANSWER grams of NaCl, place in a graduated cylinder, then add water to make the total volume ANSWER mL. | 4. (You have a 1 g/mL stock solution of protein. To make 100mL of 200 mg/mL solution, add ANSWER mL of stock and ANSWER mL of water for a final volume of ANSWER mL. (HINT: Convert units) | 5. (To make 500 mL of 1x Buffer, measure ANSWER mL of 10x stock and add ANSWER mL water to make the total volume ANSWER mL. This is a 1: ANSWER Dilution.
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formuas are molarity = molevolume in LDilution law,V1× M1 (stock solution) = V2× M2 (after dilution)where V = volume of M = molarity.

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