Question

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. What is the molar concentration of NaCl in solutions A, B and C?

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Answer 1

Answer:

sodium thiosulfate can be prepared by the reaction 2Na2s+na2co3 +4so2. gives 3na2 s2 o3+co2 how many grams of sodium thiosulfate will be produced by brainy