Chemistry Homework Help

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Dilution

Q. Describe how to prepare 0.300 L of 0.450 M HCl solution, starting with a 2.00 M HCl solution. What volume (in L) of the 2.00 M solution will you need?

Solved • May 2, 2020

Dilution

Q. You would need 1,0 mol/l NaOH-solution. In the laboratory you only have a stock solution of concentrated NaOH which concentration is 12,0 mol/l. How would you prepare 250 ml of NaOH-solution which concentration would be exactly 1,0 mol/l?

Solved • May 1, 2020

Dilution

Q. How many mL water are required to dilute a sample of 4.506 M hydrochloric acid solution to 280.0 mL of 0.3760 M solution?

Solved • Apr 19, 2020

Dilution

Q. A 130-ml sample of an 8.6 M NaCl solution is diluted to 2.5 L. What volume of the diluted solution contains 13.8 g of NaCl? (Hint: Figure out the concentration of the diluted solution first.)

Solved • Apr 14, 2020

Dilution

Q. To what volume should you dilute 20 mL of a 11 M stock HCl solution to obtain a 0.600 M HCl solution?

Solved • Apr 14, 2020

Dilution

Q. A 126 −mL sample of a 1.5 M sucrose solution is diluted to 500 mL. What is the molarity of the diluted solution?

Solved • Apr 14, 2020

Dilution

Q. A student placed 19.0 g of glucose (C6H12O6) in a volumetric flask added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100. mL m L mark on the neck of the flask was reached. The flask was then shaken until the solution was uniform. A 30.0 mL m L sample of this glucose solution was diluted to 0.500 L. How many grams of glucose are in 100. mL m L of the final solution? Express your answer to three significant figures and include the appropriate units.

Solved • Apr 13, 2020