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Grade 12 · Chemistry · three levels

Grade 12 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 39 g solute and 326 g solvent. Find the solute mass percentage. Round to 3 decimal places if needed. Answer in %.
  2. A model solution contains 27 g solute and 77 g solvent. Find the solute mass percentage. Round to 3 decimal places if needed. Answer in %.
  3. A model solution contains 28 g solute and 437 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 10 g solute and 407 g solvent. Find the solute mass percentage. Round to 3 decimal places if needed. Answer in %.
  2. A model solution contains 36 g solute and 434 g solvent. Find the solute mass percentage. Round to 3 decimal places if needed. Answer in %.
  3. A model solution contains 55 g solute and 303 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. A 77 mL aliquot at 0.5 mol/L is diluted to 154 mL total without reaction or loss. Find the final concentration. Round to 3 decimal places if needed. Answer in mol/L.
  2. A 206 g sample is 28% desired substance by mass. Find the desired substance mass. Round to 3 decimal places if needed. Answer in g.
  3. The theoretical dry pure product mass is 97 g; the actual dry pure product mass is 5 g. Find percentage yield. Round to 3 decimal places if needed. Answer in %.

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.