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9 Nov 2019

What are the molar quantities of phosphoric acid and potassiumhydroxide that need to be used with pure water to make 1 L of thebuffer?

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Lelia Lubowitz
Lelia LubowitzLv2
20 Sep 2019
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Related questions

1.) You have 100 ml each of 400 mg/ml sodium phosphate, 250 mg/mlsodium chloride, and 100 mg/ml potassium nitrate. You want to makeone liter of a solution containing 10 mg/ml sodium phosphate, 10mg/ml sodium chloride, and 10 mg/ml potassium nitrate. How much ofeach starting solution do you need to use, and how much water doyou need to add?

2.) You have 100 ml each of 50 mg/ml human chorionic gonadotropin,25x HCG buffer, and 400 mM potassium chloride. You want to make oneliter of a solution that is 1 mg/ml human chorionic gonadotropin,1x HCG buffer, and 40 mM potassium chloride How much of eachstarting solution do you need to use, and how much water do youneed to add?



c) You have 100 ml each of 400 mg/ml sodium phosphate, 250 mg/mlsodium chloride, and 100 mg/ml potassium nitrate. You want to makeone liter of a solution containing 10 mg/ml sodium phosphate, 10mg/ml sodium chloride, and 10 mg/ml potassium nitrate. How much ofeach starting solution do you need to use, and how much water doyou need to add?

d) You have 100 ml each of 50 mg/ml human chorionic gonadotropin,25x HCG buffer, and 400 mM potassium chloride. You want to make oneliter of a solution that is 1 mg/ml human chorionic gonadotropin,1x HCG buffer, and 40 mM potassium chloride How much of eachstarting solution do you need to use, and how much water do youneed to add?

You have been asked to prepare a stock solution of phosphate buffer. The working solution is 0.1M and the stock solution should be 100x more concentrated. What is the molar concentration of the stock solution? If the molecular weight of the sodium phosphate is 100 and you are asked to make 4 liters, how would you do this?

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