(c) If the solution in Part B was made by taking 20.00 mL of a stock...
A solution X is made by taking 10.00 ml of a 1.0 M solution and add enough water to make 100.0 ml total volume. Solution Y is made by taking 5.0 ml of solution X and diluting it again by adding it to 95 ml of water. Calculate the molarity of solutions X and Y. Calculate the molarity of the solution created when 50.0 ml of 0.132 M NaOH is mixed with 75.0 ml of 0.120 M NaOH ( assuming...
Suppose you have 100.00 mL of a solution of a dye and transfer 2.00 mL of the solution to a 100.00 mL volumetric flask. After adding water to the 100.00 mL mark, you take 5.00 mL of that solution and again dilute to 100.00 mL. If you find the dye concentration in the final diluted sample is 0.000129 M, what was the dye concentration in the original solution? Concentration
a. A student dissolved 20.00 g of Na2SO4 in enough water to make 250 mL of stock solution. How many mL of the stock solution would the student need to use in order to make a 150 mL of 0.100 M solution? b. In an acid-base titration, 82.56 mL of 0.175 M NaOH titrant reacts with 100.0 mL of an unknown concentration of HCl solution. What is the density of the HCl solution?
Start with a 1230.0 ppm Stock Zn solution. Prepare control 1 by diluting 2.00 mL of Stock Zn solution in a 200.0 mL volumetric flask and dilute to the mark. Prepare control 2 by diluting 2.00 mL of control 1 into a 100.0 mL volumetric flask. What is the Zn concentration (ppm Zn) in control 2? Report your answer to 4 decimal place.
25 U 25 What is the concentration of a solution made by diluting 35 mL of 6.0 M HCl to a final volume of 750 mL? concentration:
5.00 mL stock 5.00 mL Dilution A 5.00 mL Dilution B + 45.0 mL Water + 45.0 mL Water + 45.0 mL Water O b lo Dilution C Dilution A Dilution B Example #5. Solution A is prepared by diluting 1.00 mL of 0.160 M CaCl2 to 50.0 mL. Solution B is prepared by diluting 10.0 mL of Solution A to 500.0 mL. What is the concentration of CaCl2 in Solution B? O lodno tlo iz obdobimo t 100 babe...
1) A stock solution has a concentration of 100 µg/mL. If 20 µL of stock is added to a beaker. What is the mass of the dye in µg? 2) If the absorbance of the same dye (after diluted with water to 3 mL) is 0.3 AU, what is A/µg of the dye used?
750 mL? What is the concentration of a solution made by diluting 95 mL of 6.0 M HCI to a final volume of Number owsing by disabling add-ons Choose add-ons Ask m
What is molarity of a solution of NaOH prepared by diluting 20.00 mL of 6.0 M NaOH to 500.0 mL? Why can we not calculate the actual molarity of the NaOH solution as indicated in the problems above? Why is an indicator required in the reaction vessel? Which indicator is used?
1. A series of dilute NaCl solutions are prepared starting with an initial stock solution of 0.100 M NaCl. Solution A is prepared by pipeting 10 mL of the stock solution into a 250-mL volumetric flask and diluting to volume. Solution B is prepared by pipeting 25 mL of solution A into a 100-mL volumetric flask and diluting to volume. Solution C is prepared by pipeting 20 mL of solution B into a 500-mL volumetric flask and diluting to volume....