If you add 50 mL of water to 30 mL of a 4.0 % solution. What will be the concentration of the diluted solution?
Ans is 1.5%
If you add 4.00 mL of pure water to 6.00 mL of .750 M NaCl solution, what is the concentration of sodium chloride in the diluted solution? a) 0.450 M b) 0.250 M c)1.13 M d) .500 M
1, Take 1 ml 1 M NaCl solution, add 9 ml water. Then take 10 μ1 of the diluted solution, add 40 ul water. Finally the solution is 2:1 diluted. What's the final concentration of NaCI?
Test Bank, Question 06.113 If you begin with 25 mL of 0.9% (w/v) LiCl and add 50 mL of water to it, what will be the concentration of the diluted solution? % (w/v) Use correct number of significant digits; the tolerance is +/-2%
250 mL of 2 M NaCl solution was mixed with 50 mL of 0.5 M NaCl solution. What is the concentration of the solution that we will get? If this solution then was diluted with 200 mL of water, what would be the concentration of the final solution?
A 23.0 mL sample of an 4.0 % (m/v) KBr solution is diluted with water so that the final volume is 201.5 mL.
What is the final concentration of Fe 3+ in a solution if you add 2.5 mL of 3.0M Fe(NO3)3 and 3.2 mL of water in a test tube?
Question 30 of 38 > A 62.0 mL aliquot of a 1.20 M solution is diluted to a total volume of 238 ml. A 119 ml. portion of that solution is diluted by adding 187 mL of water. What is the final concentration? Assume the volumes are additive. concentration:
You transfer 1 mL of stock solution to tube A, add 9 mL of water and mix. You then transfer 1 mL from tube A to tube B, add 9 mL of water and mix. And finally you transfer 1 mL from tube B to tube C, add 9 mL of water and mix. What is the total dilution factor for this series when comparing the stock solution with tube C? (990 is not the answer)
you add 100.ml of water 10. ml of 5.5 M NaOH. then you take 13.0 ml of the resulting solution and dilute it to a volume of 500.ml what is the final concentration of NaOH
Add 1.5 mL of the 1.0%(v/v) ethanol (mL) to 8.5 mL of deionized water. The ethanol standard in the test tube will have a final concentration of ____ %(v/v) ethanol? Add 1.0 mL of wine that has been diluted by a factor of 100, to a test tube and add 20 drops of sulfuric acid to it. The concentration of the diluted wine sample was found to be 0.23%(v/v) ethanol. Using the procedure stated, what was the original concentration of...