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9. How much CuSO4.5H20 will you weigh out to prepare 250 mL of a 0.75 mole/L...
Calculate how much KOH you will need to weigh out to make 250 mL of a...
Calculate how much KOH you will need to weigh out to make 250 mL of a 0.2M KOH solution. How much potassium hydrogen phthalate (molar mass 204.23 g/mol) do you need to weigh out if you want to use 20.00 mL of your standard 0.2000 M KOH solution to titrate the potassium hydrogen phthalate sample? Note: potassium hydrogen phthalate has ONE hydrogen that reacts with KOH. We often use KHP as our "simplified formula" for potassium hydrogen phthalate rather than...
How should you prepare 250 mL of 0.25 M KCl (aq)? Select one: a. Weigh out...
How should you prepare 250 mL of 0.25 M KCl (aq)? Select one: a. Weigh out 10.00 g of KCl into a flask and add 500 mL of water b. Weigh out 9.32 g of KCl into a flask and add water until the 250 mL line is c. Weigh out 62.5 g of KCl into a flask and add water until the 250 mL line is d. Weigh out 2.50 g of KCl into a flask and add 250...
9. Weigh two samples of KHP in the 125 mL Erlenmeyer flask directly, weighing out enough...
9. Weigh two samples of KHP in the 125 mL Erlenmeyer flask directly, weighing out enough to react with ~25 mL of 0.1M NaOH solution. How much KHP is enough? 10. When you are ready to titrate the solution, dissolve the KHP with 25 mL DI water.
Induction refers to when 3. How much Cuso, SHO would you need to weigh out if...
Induction refers to when
3. How much Cuso, SHO would you need to weigh out if you wanted a sample that contains 5.00 mol of H atoms? (Make sure your response contains appropriate units and sig. digits and the logic and equa tions are shown clearly.) Check your solution (NOT just the final answer) by comparing with peers.
You want to make 500 mL of 10 M NaOH solutions? How much NaOH do you...
You want to make 500 mL of 10 M NaOH solutions? How much NaOH do you have to weigh out? Walk me through the steps it takes to make this solution? During the weighing out process you weigh out 201.53 NaOH, what is your new molarity? Using your stock solution, you want to make a series of dilutions, you want 25 mL of the following concentrations of NaOH: 0.5 M ,1 M, 3 M, 7 M, 9 M. How much...
you need to make 250 mL of a 0.75 N sodium Goopate solution. you have Na...
you need to make 250 mL of a 0.75 N sodium Goopate solution. you have Na Gloopate.10H2O with f.w. of 180.000, and has an assay value of 88%. anhydrous Na Gloopate has a f.w. of 100.000. how many grams of Na Gloopate.10H2O must you weigh out?
You are provided with a 250 mL volumetric flask, deionized water, and solid NaOH. How much...
You are provided with a 250 mL volumetric flask, deionized water, and solid NaOH. How much NaOH should be weighed out in order to make 250. mL of 0.100 M solution?
19. a. What mass of potassium bromide is needed to prepare a 250. mL of a...
19. a. What mass of potassium bromide is needed to prepare a 250. mL of a 2.00 M KBr aqueous solution? Molar mass of KBr = 119.00 g/mol. Use dimensional analysis to calculate the mass. b. Describe the full process of how you would prepare this solution in a 250. mL volumetric flask. c. Calculate the concentration of the solution in question a. if more water was added to bring the solution to a final volume of 1000. mL. (Hint:...
9) You have a bottle of powdered calcium chloride (M.W. = 110.98 g/mole) and you need...
9) You have a bottle of powdered calcium chloride (M.W. = 110.98 g/mole) and you need to make 250 mL of a 10 mM solution. How much calcium chloride do you need to weigh?
29. You have the following concentrated commercial reagents on hand; make 1 L of a 6...
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...
Calculate how much KOH you will need to weigh out to make 250 mL of a 0.2M KOH solution. How much potassium hydrogen phthalate (molar mass 204.23 g/mol) do you need to weigh out if you want to use 20.00 mL of your standard 0.2000 M KOH solution to titrate the potassium hydrogen phthalate sample? Note: potassium hydrogen phthalate has ONE hydrogen that reacts with KOH. We often use KHP as our "simplified formula" for potassium hydrogen phthalate rather than...
How should you prepare 250 mL of 0.25 M KCl (aq)? Select one: a. Weigh out 10.00 g of KCl into a flask and add 500 mL of water b. Weigh out 9.32 g of KCl into a flask and add water until the 250 mL line is c. Weigh out 62.5 g of KCl into a flask and add water until the 250 mL line is d. Weigh out 2.50 g of KCl into a flask and add 250...
Induction refers to when
3. How much Cuso, SHO would you need to weigh out if you wanted a sample that contains 5.00 mol of H atoms? (Make sure your response contains appropriate units and sig. digits and the logic and equa tions are shown clearly.) Check your solution (NOT just the final answer) by comparing with peers.
You want to make 500 mL of 10 M NaOH solutions? How much NaOH do you have to weigh out? Walk me through the steps it takes to make this solution? During the weighing out process you weigh out 201.53 NaOH, what is your new molarity? Using your stock solution, you want to make a series of dilutions, you want 25 mL of the following concentrations of NaOH: 0.5 M ,1 M, 3 M, 7 M, 9 M. How much...
19. a. What mass of potassium bromide is needed to prepare a 250. mL of a 2.00 M KBr aqueous solution? Molar mass of KBr = 119.00 g/mol. Use dimensional analysis to calculate the mass. b. Describe the full process of how you would prepare this solution in a 250. mL volumetric flask. c. Calculate the concentration of the solution in question a. if more water was added to bring the solution to a final volume of 1000. mL. (Hint:...
9) You have a bottle of powdered calcium chloride (M.W. = 110.98 g/mole) and you need to make 250 mL of a 10 mM solution. How much calcium chloride do you need to weigh?
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...
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