StudyBrixFree worksheets, study guides and courses

Grade 9 · Chemistry · three levels

Grade 9 Analytical chemistry worksheet in three levels

The same 20-question worksheet on analytical chemistry in Support, Core and Challenge versions. Question by question, each version keeps the topic and changes the difficulty.

All three levels PDFAll three answer keysOriginal worksheet

Compare the three levels

Support

Easier questions on the same topics, for students who need more practice with the basics.

Questions
20 (20 medium)
Grade range
Grades 8 to 11
Topics
Analytical chemistry

Sample questions

  1. A model solution contains 34 g solute and 90 g solvent. Find the solute mass percentage. Round to 3 decimal places if needed. Answer in %.
  2. A model solution contains 6 g solute and 260 g solvent. Find the solute mass percentage. Round to 3 decimal places if needed. Answer in %.
  3. A model solution contains 54 g solute and 76 g solvent. Find the solute mass percentage. Round to 3 decimal places if needed. Answer in %.

Core

Questions at the expected level for the grade.

Questions
20 (20 medium)
Grade range
Grades 8 to 11
Topics
Analytical chemistry

Sample questions

  1. A model solution contains 37 g solute and 339 g solvent. Find the solute mass percentage. Round to 3 decimal places if needed. Answer in %.
  2. A model solution contains 24 g solute and 56 g solvent. Find the solute mass percentage. Round to 3 decimal places if needed. Answer in %.
  3. A model solution contains 41 g solute and 392 g solvent. Find the solute mass percentage. Round to 3 decimal places if needed. Answer in %.

Challenge

Harder questions on the same topics, for students who are ready to stretch.

Questions
20 (20 challenge)
Grade range
Grades 9 to 12
Topics
Analytical chemistry

Sample questions

  1. Measured from the same origin, a spot travels 23 mm and the solvent front 38 mm. Find Rf. Round to 3 decimal places if needed.
  2. An aqueous solution has concentration 0.1 mol/L. A model aliquot has volume 151 mL. Find the solute amount. Round to 3 decimal places if needed. Answer in mol.
  3. A 51 mL aliquot at 1.1 mol/L is diluted to 306 mL total without reaction or loss. Find the final concentration. Round to 3 decimal places if needed. Answer in mol/L.

Using the three versions

  • Start everyone with the same short explanation, then hand out Support, Core or Challenge.
  • Question numbers line up across the versions, so you can go through the answers with the whole class.
  • The PDF has a cover page and each version on its own pages; the answer keys PDF has all three keys.

See the original worksheet or browse more three-level worksheets.