In order to make 25 mL of an 80 ppm solution, what volume of the 1000 ppm solution would be needed?
The volume of 1000 ppm solution needed = (25 ×80) / 1000 = 2mL
So 2mL solution of 1000 ppm will be needed.
In order to make 25 mL of an 80 ppm solution, what volume of the 1000...
a) If you are given a solution that is 350 ppm Zn, how would you make 250 mL of a solutions that is 120 ppm Zn? b) What is the concentration of the original solution of Zinc ions (350 ppm) in micrograms per mL of solution? The solubility of calcium carbonate in cold water (25 degree C) is 0.0014 g/100mL Calculate the concentration in Molarity of a saturated solution of calcium carbonate.
If you want to make 200.00 mL of a solution that is 1.75 ppm and you have a 12.0 ppm stock solution, how much of the stock solution should you measure out and dilute with water?
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What volume of sample, in mL, would be needed to make 2 mL of a 5-fold dilution? (3 significant figures needed)
Suppose you need to make 100.00 mL of a solution that is 4.0 ppm Mg2+ and 15.0 ppm Na+. How many grams of reagent MgCl2.6H2O and how many grams of reagent NaCl should you use?
please show work
so: 1 ml stock 10 ml final -0.5 mL of stock -5 ml final volume While I have used 1:10 as a standard the same rules apply for all dilution factors. Try these problems: x 0.5 X0.5 1. You need to make a 1:25 dilution factor. If you final volume is 25 mL this means that you need_ _mL of stock and mL of solvent to make your final volume of 25 mL. 2. If you needed...
You have a stock solution of 25 mg/mL igG and want to make 2000 microliters of protein standard at a concentration of 1.5 mg/mL. What volume of igG stock would you need?
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A 60 ppm solution of hydrogen peroxide is 60 mg of H2O2 per 1000 g of solution. Assuming that the density of this solution is 1.00 g/ml, convert this concetration from ppm to molarity.