ST ONLY
This type of substance produces ions when dissolved in water and conducts electricity.
What is an electrolyte?
This compound has a molar mass of 18.0 g/mol. What is the mass of 2.0 moles of H₂O?
What is 36.0 g?
Name this compound: Na₂O
What is sodium oxide?
A solution contains 5.0 g of solute in 250 mL of solution.
What is the concentration in g/mL?
What is 0.020 g/mL?
You dilute 25 mL of 2.0 M HCl to a final volume of 100 mL. What is the final concentration?
What is 0.50 M?
When sodium chloride dissolves in water, it separates into Na⁺ and Cl⁻.
This process is called:
What is electrolytic dissociation?
What is the molar mass of NaCl?
What is 58.5 g/mol?
Write the formula for the compound formed between magnesium and chlorine.
What is MgCl₂?
A solution is prepared by mixing 15 mL of ethanol with enough water to make 100 mL of solution.
What is the concentration in % V/V?
What is 15% V/V?
You have 10 mL of 1.0 M NaCl. How much water do you need to add to make a 0.5 M solution?
What is 10mL?
This type of compound produces H⁺ ions in aqueous solution.
What is an acid?
What is the mass of 0.50 moles of CaCO₃?
What is 50.0 g?
Name this compound: FeCl₃
What is iron(III) chloride?
How many moles of NaCl are present in 0.50 L of a 2.0 mol/L solution?
What is 1.0 mol?
You have 100 mL of a 10 g/L NaCl solution. You dilute it to 200 mL. What is the new concentration?
What is 5 g/L?
Classify each of the following as an acid, base, or salt:
KCl, KOH, KNO₃
This compound is magnesium hydroxide.
What is the mass of 0.25 moles?
What is 14.6 g?
Write the formula for the compound formed between aluminum and oxygen.
What is Al₂O₃?
A solution contains 0.30 g of solute dissolved in 2.5 L of water.
What is the concentration in ppm?
What is 120 ppm?
You have 50 mL of 8% m/m sugar solution. You add water to make 200 mL. What is the new % m/m?
What is 2% m/m?
When aqueous calcium chloride conducts electricity, the solution contains these ions.
What are Ca²⁺ and 2Cl⁻?
This compound is aluminum sulfate.
What is its molar mass?
What is 342.2 g/mol?
Write the formula for the compound formed between ammonium and phosphate.
What is (NH₄)₃PO₄?
A chemist dissolves 12.5 g of NaOH in 350 mL of water.
What is the molarity of the solution?
What is 0.89 M?
You have 30 mL of 6.0 M KOH. You want to prepare 200 mL of a 0.75 M solution.
How much of the stock solution (6.0 M) do you need, and how much water should you add?
What are: 25 mL of 6.0 M KOH and 175 mL of water?