Explain the concentration percentage of the stock solution

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Reference no: EM13236264

1. How do you make a 2.2M NaCl solution in the amount of 340µl. The stock solution is 5.7M

2. If 25 ml of solution A is needed to make a 0.7 liters with a final concentration of 1.5%, what was the concentration percentage of the stock solution?

3. In the lab, Jose made a 2X TBE working solution in the amount of 1.0 x 10^3 ml. He remembered he started with a 10X TBE but did not write down the amount. Calculate the amount of TBE Jose used to make his working solution.

Reference no: EM13236264

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