100 mL of 10 M acid is diluted with water to 1000 mL. What is the new molarity?
Answer and explanation
Correct answer: A. 1 M
- Step 1: Moles stay the same: , so M.
Answer
1 M.
Why not the others: 100 M, 5 M and 10 M don't fit.
Practise more Chemical calculations.
Free questions with an explanation for every one, and full timed Victorian VCE mock tests.
More Chemical calculations questions
- 0.5 mol of a solute is dissolved to make 0.25 litres of solution. What is the molarity?
- What is the pH of a strong acid solution whose hydrogen ion concentration is 10⁻¹ mol/L?
- What volume does 2 mol of an ideal gas occupy at STP? (molar volume 22.4 L/mol)
- How many grams of water form when 16 g of hydrogen burns completely in oxygen? (; H = 1, O…
- What is the percentage by mass of sodium in NaOH? (molar mass of NaOH = 40, mass of sodium in it = 23)
- How many moles are there in 22 g of CO2? (molar mass 44 g/mol)