Question

A 5.0889 g sample of Na2CrO4 (MW = 161.97 g/mol) is dissolved in 1000.0 mL of water. Assume the solution has a density of 1.00 g/mL. What is the concentration of Na+ (MW = 22.9898 g/mol) in the solution in units of molarity (M)? concentration: [ ] M What is the concentration of Na+ in the solution in units of parts per thousand (ppt)? concentration: [ ] ppt A 25.0 mL aliquot of the solution is then diluted to a final volume of 250.0 mL. What is the concentration of Na+ in the diluted solution in units of parts per million (ppm)? concentration: [ ] ppm

          A 5.0889 g sample of Na2CrO4 (MW = 161.97 g/mol) is dissolved in 1000.0 mL of water. Assume the solution has a density
of 1.00 g/mL.
What is the concentration of Na+ (MW = 22.9898 g/mol) in the solution in units of molarity (M)?

concentration: [ ] M

What is the concentration of Na+ in the solution in units of parts per thousand (ppt)?

concentration: [ ] ppt

A 25.0 mL aliquot of the solution is then diluted to a final volume of 250.0 mL. What is the concentration of Na+ in the
diluted solution in units of parts per million (ppm)?

concentration: [ ] ppm

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A 5.0889 g sample of Na2CrO4 (MW = 161.97 g/mol) is dissolved in 1000.0 mL of water. Assume the solution has a density
of 1.00 g/mL.
What is the concentration of Na+ (MW = 22.9898 g/mol) in the solution in units of molarity (M)?

concentration: [ ] M

What is the concentration of Na+ in the solution in units of parts per thousand (ppt)?

concentration: [ ] ppt

A 25.0 mL aliquot of the solution is then diluted to a final volume of 250.0 mL. What is the concentration of Na+ in the
diluted solution in units of parts per million (ppm)?

concentration: [ ] ppm

Added by Matthew M.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Adi S

11/18/2023

Step 1

0889 g sample. moles of Na2CrO4 = (mass of Na2CrO4) / (molar mass of Na2CrO4) moles of Na2CrO4 = (5.0889 g) / (161.97 g/mol) moles of Na2CrO4 = 0.0314 mol Now, we need to find the moles of Na+ ions in the sample. Since there are 2 moles of Na+ ions in 1 mole of Show more…

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A 5.0889 g sample of Na2CrO4 (MW = 161.97 g/mol) is dissolved in 1000.0 mL of water. Assume the solution has a density of 1.00 g/mL. What is the concentration of Na+ (MW = 22.9898 g/mol) in the solution in units of molarity (M)? What is the concentration of Na+ in the solution in units of parts per thousand (ppt)? A 25.0 mL aliquot of the solution is then diluted to a final volume of 250.0 mL. What is the concentration of Na+ in the diluted solution in units of parts per million (ppm)?

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