A working solution is 1× and therefore a 5× solution must be diluted 5 fold, usually with deionised water.
Calculate what volume of stock solution is required to prepare 5 litre of 1× TBE buffer from a 100× TBE stock solution. Select the relevant unit. ml or M
Calculate the volume of stock solution required.
A working solution is 1× and therefore a 5× solution must be diluted 5 fold, usually...
of 10 > A 37.0 mL aliquot of a 0.400 M stock solution must be diluted to 0.100 M. Assuming the volumes are additive, how much water should be added? volume of water: volume of water:
8. A 50-g/L solution was diluted 1:5. This diluted sam ple was then diluted 1:10. What is the concentration of the final solution? a. 0.8 g/L b. 1 g/L c. 2.9 g/L d. 3.3 g/L 9. How much diluent is needed to prepare 300 mL of a 0.2-M working solution from a 0.8-M stock solution? a. 75 mL b. 225 ml c. 900 mL d. 1200 mL 10. What is the molarity of a solution containing 2 mol of sodium...
A CXR stock solution was diluted 1:2 with saline to make a temporary CXR working solution. The temporary CXR solution was diluted 1:5 with water to make a working CXR solution. 1 ml of the CXR working solution was added to 9 mls of reagent. What is the final dilution of the CXR solution?
What volume of 0.673 M sucrose solution must be diluted with water to prepare 250.0 mL of 0.467 M sucrose solution?
One hundred(100) ml of a 1.00 M solution of HCL is diluted with water to prepare a 0.200 M solution. What is the volume of the resulting 0.200 M solution? Or asked another way, to what volume must the original soltuion be diluted?
Calculate the volume of 0.25 M sodium chloride solution, in ml, that must be diluted to prepare 50.00 mL of a 0.025 M NaCl solution. Show your work.
1) If you have a 5 molar solution and a diluted 0.1 molar solution. What is the ratio between these two? 2) If you want to prepare 50ml medium containing 5% FBS. What is the volume of FBS you have to add? 3) If the concentration in your original medium is 50.000 cells per ml and you add 1ml of this medium to 4ml fresh medium without cells. How many cells per ml are in these 5ml of new medium?...
1) How would you prepare 500mL of working TBE buffer if the stock solution was purchased as 25X TBE? 2) 2mL of a serum sample was added to 18mL of phosphate buffered saline (PBS) in Tube 1. 10mL of Tube 1 was added to 40mL of PBS in Tube What is the dilution of serum in Tube 2? 3) A student needed to prepare 500mL of 1X TAE buffer to run a QC gel. The stock solution in the lab...
Calculate the following quantity: volume of 1.184 M copper(II) nitrate that must be diluted with water to prepare 204.6 mL of a 0.5422 M solution.
buffer solutions
1. Determine the volume of 1.0 M tartaric acid, H2CaH&Os, solution that when diluted to a total volume of 250.0 mL produces a solution that is 0.050 M in tartaric acid. 2. Determine the mass of potassium hydrogen tartrate, KHC&H4O6, required to prepare 250.0 mL of a solution that is 0.050 M in hydrogen tartrate ion. 3a. Write a balanced equation and corresponding K, expression for the ionization of the weak acid lactic acid (HC3HsO3, Ka 1.62 x...