Preparation of Solutions
Chemistry ⇒ Solutions and Colloids
Preparation of Solutions starts at 9 and continues till grade 12.
QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Preparation of Solutions.
How you perform is determined by your score and the time you take.
When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.
See sample questions for grade 9
A laboratory technician needs to prepare 1 L of 0.5 M NaOH solution. Calculate the mass of NaOH required. (Na = 23, O = 16, H = 1)
A solution is prepared by dissolving 5 g of salt in 95 g of water. What is the mass percentage of salt in the solution?
A student dissolves 10 g of sugar in 100 mL of water. What is the concentration in g/L?
A student needs to prepare 100 mL of 0.2 M H2SO4 from a 1 M stock solution. What volume of stock solution is required?
A student prepares a solution by dissolving 2 g of potassium permanganate in 500 mL of water. What is the concentration in g/L?
A student prepares a solution by dissolving 4 g of glucose in enough water to make 200 mL of solution. What is the concentration in g/L?
A student wants to prepare 250 mL of 0.1 mol/L NaCl solution. How many moles of NaCl are needed?
Describe how you would prepare 250 mL of 0.5 M KNO3 solution. (K = 39, N = 14, O = 16)
Describe the difference between a saturated and an unsaturated solution.
Describe the steps to prepare 100 mL of 1 M HCl solution from concentrated HCl.
Explain why it is important to add the solute to the solvent and not the other way around when preparing a solution.
Explain why solutions should be labeled with concentration and date of preparation.
Explain why temperature should be controlled when preparing a solution of a precise concentration.
What is the mass of NaCl required to prepare 500 mL of 0.2 mol/L NaCl solution? (Na = 23, Cl = 35.5)
What is the solvent in an aqueous solution of sodium chloride?
