Question

29. You have the following concentrated commercial reagents on hand; make 1 L of a 6 N reagent from each of them. What is the molarity of each concentrated reagent? How to make it? NFLOH sp. gr. = 0.90; 58% assay (V=1) H(CH3C00) sp. gr. = 1.05; 99% assay (v-1) 30. How much 0.02 N HSO, can you make from 200 mL of 4N HSO.? 31. How much Cuso, 8H20 will you need to weigh out to substitute for 120 g of Cuso.? 32. You want to make l L of an 8.8% (w/v) NaS04 solution. You have NaSOuA10H2O on hand. How much will you need to weigh out? 33. What is the final concentration of your glucose solution if you had a 1000 mg/dL solution and you took 1 mL of that and diluted it to 5 mL, then you took 4 mL of that and added it to 12 mL of water? 34. How would you dilute a 2 mg/mL glucose stock standard to make 100 mL of a 50 mg/dL standard? 35, what is the dilution factor of the tube #5 when 2 mL of serumis added to the 2 mL of H20 in tube # 1 followed by a serial dilution? 36. 10 mL of 1.0 N NaOH was needed to titrate 30 mL of HCL to neutrality. What is the N of HCL?

Answer 1