Tutorial 1 Introduction of analytical chemistry (molarity, normality ) PDF

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TUTORIAL 1CHAPTER 1 A 6% (w/w) Fe(NO 3 ) 3 solution has a density of 1 g/mL. A 21 mL of this solution was diluted with water to 50 mL in a volumetric flask. Calculate the concentration of the diluted Fe(NO 3 ) 3 solution in: a) % (w/v)b) Molarityc) Part per million Describe how to prepare 5 00 mL of...

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TUTORIAL 1 CHAPTER 1

1.

A 6.42% (w/w) Fe(NO3)3 solution has a density of 1.06 g/mL. A 21.70 mL of this solution was diluted with water to 50 mL in a volumetric flask. Calculate the concentration of the diluted Fe(NO3)3 solution in: a)

% (w/v)

b)

Molarity

c)

Part per million

2.

Describe how to prepare 500 mL of a solution that is 60.0 ppm in Cl- starting with solid MgCl2.

3.

A solution is prepared by dissolving 3.5725 g H3PO4 in 500 mL volumetric flask and diluting it to the calibration mark. Calculate: a)

the normality of the H3PO4 solution.

b)

the concentration (ppm) of H+ ion in the solution.

4.

Describe the preparation of 2.00 L of 0.150 M perchloric acid from a concentrated solution that has a specific gravity of 1.66 and is 70% (w/w) HClO4.

5.

Determine the % (w/w) of nitrate ion in 100 mL, 200 ppm Ca(NO3)2. Given the density for this solution is 1.13 g/mL

6.

Describe the preparation of 250 mL 50 ppm of AgNO3 from the solid chemical....