explain how you would make 1L of a 10mg/ml KCL solution.
How would you make 1L of 0.1N NaOH solution from an 18N stock solution?
How will you make a 1L of a 6M solution of sucrose? The molecular weight of sucrose is 342.2965 g/mol. If you start with the sucrose powder, how would you make this?
If you are making a 1:10 dilution of a 10mg/ml BSA solution using 90ul of water as diluent, how much 10mg/ml of BSA would you add? What would be your final concentration of BSA? If you assayed both these solutions using the Bradford assay which one would have a higher O.D.?
7) If you are making a 1:10 dilution of a 10mg/ml BSA solution using 90ul of water as diluent, how much 10mg/ml of BSA would you add? 8) What would be your final concentration of BSA? 9) If you assayed both these solutions using the Bradford assay which one would have a higher O.D.? 10) What device would you use to measure O.D.? 11) In your assay you would need a blank. What would you use as a blank? Water,...
A solution is labeled "(2.300x10^-1) M KCl". If you measure (7.60x10^2) mL of this solution, how many moles of KCl would you have? show work
what is the molarity of the solution 111.83g of KCL (gmw 74.55) dissolved in 1L of water?
Goal- to make a 1L solution of phosphate buffer at pH 7.8 If you make up a 1M aqueous solution each of: NaH2PO4 and Na2HPO4 How much of each solution would you need to add (mix) to make up a 1 liter solution of 0.4 M phosphate at pH 7.8 Hint: the pKa for H2PO4- <-> HPO4 2- + H+ is 6.8)
1. A 19.6 gram sample of KCl is used to make a 275. mL KCl solution. What is the molarity of the KCl solution? 2. A chemist has a bottle containing 0.25 M CuCl2. How many milliliters of this solution should the chemist use to add 12.0 grams of CuCl2 to her reaction? 3. In a saturated solution of the ionic compound sodium sulfate, Na3PO4 all of the water molecules are involved in the hydration process. some solid Na3PO4 is...
1) when 1.00mole of KCl is dissolved in 2L of solution, what is the molarity of this solution? 2) How many moles of KCl in 50grams of KCl? When 50gram of KCl is dissolved in in 1L of solution, what is the molarity of the prepared solution? 3) if you want to make 500mL of 2.0M KCI Solution, how many grams of KCl you should use? discuss your steps when you answer this question.
You make 1L of an aqueous solution that contains 35g of fructose (C6H12O6). A. What is the molarity of fructose in this solution? B. How many litres of water would you have to add to this solution to reduce the molarity you calculated in Part A by a factor of two?