Explain and describe the proper technique for preparing this

EBK A SMALL SCALE APPROACH TO ORGANIC L
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Chapter79: Solubility
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AP Style Free Response
Solution Concentration
Dilute solutions of hydrochloric acid, HCI, are used in many chemical processes and found naturally in
stomach acid. Concentrated hydrochloric acid (12.4 M), also known as muriatic acid, is known to have a
density of 1.19 g/mL..
a. Describe the procedure for making 500.0 mL of 6.0 M HCI from the concentrated solution. Include
specific quantities where appropriate.
b. Calculate the mass percent of HCI present in the original concentrated solution.
c. A student was asked to prepare 500.0 mL of 6.0 M NaOH. The student measured 120.0 g of NaOH
and placed it in a 1000 mL beaker. The student then added 500.0 mL of distilled water to the
beaker and stirred until all of the NaOH had dissolved. The resulting solution is not 6.0 M. Is the
concentration too high or too low? Explain and describe the proper technique for preparing this
solution.
d. HCl is considered a strong acid. Explain the difference between an acid's strength and its
concentration.
Transcribed Image Text:AP Style Free Response Solution Concentration Dilute solutions of hydrochloric acid, HCI, are used in many chemical processes and found naturally in stomach acid. Concentrated hydrochloric acid (12.4 M), also known as muriatic acid, is known to have a density of 1.19 g/mL.. a. Describe the procedure for making 500.0 mL of 6.0 M HCI from the concentrated solution. Include specific quantities where appropriate. b. Calculate the mass percent of HCI present in the original concentrated solution. c. A student was asked to prepare 500.0 mL of 6.0 M NaOH. The student measured 120.0 g of NaOH and placed it in a 1000 mL beaker. The student then added 500.0 mL of distilled water to the beaker and stirred until all of the NaOH had dissolved. The resulting solution is not 6.0 M. Is the concentration too high or too low? Explain and describe the proper technique for preparing this solution. d. HCl is considered a strong acid. Explain the difference between an acid's strength and its concentration.
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