CHEMISTRY 30A SOLUTION PREPARATION PRE-LAB SP16 The objective of this lab is to

Question

CHEMISTRY 30A SOLUTION PREPARATION PRE-LAB SP16 The objective of this lab is to give you some practice in using your knowledge of the definitions of different solution concentrations to prepare different solutions Your instructor will assign you a concentration value for each of the following solutions that you will prepare. For each solution, you will write down the procedure you used and any calculations you had to do. If you are unsure of your calculations and/or procedure, please consult with the instructor before proceeding. Solution 1: 50.0 mL of a 8.9 % m/v NaCl (aq) Solution 2: 10.0 mL of a 10-fold dilution of Solution I

Explanation / Answer

8.9% m/v of NaCl means

100 ml of solution contains 8.9 g of NaCl

100/2=50 ml of solution contains 8.9/2=4.45 g of NaCl

Sp exactly weigh and transfer 4.45 g of NaCl in a 50.0ml of water we get required solution.

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