Answer to Question #259338 in General Chemistry for Kinn

Question

1. How many grams of solute are needed to prepare 250 mL of a 0.55 M NaNO3

solution?

2. How would you use a 250-mL volumetric flask to prepare a 34% (v/v) ethanol

(CH3CH2OH) in water?

3. What is the concentration of a solution formed by diluting 125 mL of 12.0 M HCl

solution to 850 mL?

4. What is the concentration of a solution formed by diluting 250 mL of 6.0 M NaOH

solution to 0.45 L?

5. How many milliliters of a 5.0 M sucrose solution would be needed to prepare 45 mL

of a 4.0 M solution?

Answer 1

number one

145 mL of a 4.0 M HNO3 solution

6.5 L of a 2.5 M HCl solution

number two

A. Dissolve 34 mL of ethanol in 250 mL of water to make 280 ml solution O

number three

Initial volume HCL of solution, V₁ =125 mL

Initial molarity HCL of solution,  M₁ =12.0 M

Final volume HCL of solution, V₂ =850mL

number four

number five