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How will you prepare 50% (v/v) DPPH solution?
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- pls show complete solutionWhat molarity of HCl stock solution is needed so that 12.5 mL of this stock solution diluted to 0.500L will yield 5mM?1. Make up 0.1 M solutions (100 ml) of Na2HPO4 (FW=177.99) and NaH2PO4 (FW=137.99) using a 100 ml volumetric flask. 2. First calculate the amount of each compound needed by using its formula weight. Weigh each compound out in its own 150 ml beaker, add 70-80 ml of water and stir until all the compound is dissolved
- How many mL of 0.10 M H2SO4 can be made from 50.0 mL of 0.25 M H2SO4?Please don't providee hand writtin solution...1) How would you prepare 100ml of 0.5m solution using your stock solution. 2) How would you prepare 500ml of 0.5m solution using your stock solution? 3) How would you prepare 100ml of 0.25m solution using your stock solution.