Why are we preparing a standard solution series? What will it be used to calcula

Question

Why are we preparing a standard solution series? What will it be used to calculate? How many milliliters of a 1.30 M NaCl solution are needed to prepare 0.50 L of 0.10 M NaCl? When preparing aqueous a volumetric flask, does it matter if there are a few droplets of water in solutions in the bottom of the flask or does the flask need to be completely dry? Explain? Recall Beer's law, A = e^- lc. In your experiment, a calibration plot of _________ (Y) versus _________ (X) will be constructed. For the unknown penny solution, _________ will be measured and _________ will be calculated using the calibration curve.

Explanation / Answer

Ans 2 .

The volume can be calculated using the formula ,

M1 V1 = M2 V2

10.3 x V1 = 0.10 x 0.50

V1 = 4.854 mL

So 4.854 mL of NaCl soution will be required

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