Calculate the average and the standard deviation for the following data: 2. Desc

Question

Calculate the average and the standard deviation for the following data: 2. Describe how you would prepare 150 mL of a 50 mM NaCl (MW = 58.5 g/mol) solution.3. Describe how you would prepare 400 mL of a 25.0 mM NaCl solution using a 7.00 M NaCl stock. 4. Express 75 mM KC1 (MW 74.6 g/mol) concentration in g/L, %w/v and M (mol/L).5. Temperature conversion. 98 degree F =degree C 6. You are preparing 300 mL of a solution that will contain: 50 mM Tris-HCl pH 7.4, 10 mM EDTA, 5.5 mM PMSF (phenylmethylsulfonyl fluoride) and 6.5% (vol/vol) Triton X-100.How would you prepare your solution? These are the stock solutions available to you: 2.00 M Tris-HCl, pH 7.4; 200 mM EDTA; 0.500 M PMSF; Triton X-100 (liquid, pure) 7. You are making serial dilutions from one stock solution. Please calculate the concentration of each solution. STOCK solution: 2.50 M NaCl 1 * solution: 1.00 mL stock solution + 9.00 mL water rightarrow2nd solution: 1.00 mL 1*' solution + 9.00 mL water rightarrow 3rd solution: 5.00 mL 2nd solution + 25.00 mL water

Explanation / Answer

Based on the given data,

1)

2)

Grams = 58.5g/mole x 0.15 L x 0.05 M = 0.43875g Nacl

5)

98 oF = 36.66 oC

Related Questions

Navigate

• Browse (All)
• Browse C
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.