Tawjihiya Bahrain (Secondary School Certificate) · Physics And Chemistry
Quantities and solutions
8 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 8 questions
- How many moles are in 36 g of H2O? (molar mass 18 g/mol)
- 10 mL of a 1 M solution is diluted with water to a total volume of 50 mL. What is the new concentration?
- 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)
- 25 mL of 0.2 M HCl is exactly neutralized by 10 mL of NaOH solution. What is the concentration of the NaOH?
- How many moles are in 117 g of NaCl? (molar mass 58.5 g/mol)
- 540 g of glucose (molar mass 180 g/mol) are dissolved in water to make 2 L of solution. What is the molarity?
- 25 mL of a 1 M solution is diluted with water to a total volume of 100 mL. What is the new concentration?
- Hydrogen burns in oxygen according to 2 H2 + O2 -> 2 H2O. How many grams of water form when 6 g of hydrogen (H2, 2 g/mol) react completely? (H2O is 18 g/mol)
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