Bagrut (Secondary School Matriculation) · Chemistry

Quantities and solutions

10 practice questions, each with the answer and an explanation.

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Random questions from this topic, one at a time. You see the answer and the explanation straight after each one.

All 10 questions

  1. How many moles are in 490 g of H2SO4? (molar mass 98 g/mol)
  2. 540 g of glucose (molar mass 180 g/mol) are dissolved in water to make 4 L of solution. What is the molarity?
  3. 5 mL of a 2 M solution is diluted with water to a total volume of 20 mL. What is the new concentration?
  4. Hydrogen burns in oxygen according to 2 H2 + O2 -> 2 H2O. How many grams of water form when 10 g of hydrogen (H2, 2 g/mol) react completely? (H2O is 18 g/mol)
  5. 20 mL of 0.1 M HCl is exactly neutralized by 10 mL of NaOH solution. What is the concentration of the NaOH?
  6. How many moles are in 36 g of H2O? (molar mass 18 g/mol)
  7. Hydrogen burns in oxygen according to 2 H2 + O2 -> 2 H2O. How many grams of water form when 2 g of hydrogen (H2, 2 g/mol) react completely? (H2O is 18 g/mol)
  8. 25 mL of 0.2 M HCl is exactly neutralized by 10 mL of NaOH solution. What is the concentration of the NaOH?
  9. How many moles are in 200 g of NaOH? (molar mass 40 g/mol)
  10. 5 mL of a 4 M solution is diluted with water to a total volume of 40 mL. What is the new concentration?

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