Answer no. 25 24. A sample of 0.6760 g of an unknown compound containing barium ions (Ba?*) is dissolved in water andtreated with an excess of NazSO4. If the masses of the BaSO4 precipitate formed is 0.4105 g, what is thepercent by mass of Ba in the original unknown compound?A. 37.52 %B. 35.72%C. 32.57%D. 37.72 %25. What is the concentration (in molarity ) of a NaOH solution if 25.0 mL of the solution are needed toneutralize 17.4 ml of a 0.312 M HCI solution?A. 0.217 MB. 0.127 MC. 0.271 MD. 0.712 M

Sodium hydroxide reacts with hydrochloric acid, to form sodium chloride and water. The equation for…

Answered: -25. What is the concentration (in…

-25. What is the concentration (in molarity ) of a NaOH solution if 25.0 mL of the solution are needed to neutralize 17.4 ml of a 0.312 M HCI solution? А. О.217 М B. 0,127 M С.0.271 М D. 0.712 M

Introductory Chemistry: A Foundation

9th Edition

ISBN:9781337399425

Author:Steven S. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Donald J. DeCoste

Chapter15: Solutions

Section: Chapter Questions

Problem 116AP

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Question

Answer no. 25

24. A sample of 0.6760 g of an unknown compound containing barium ions (Ba?*) is dissolved in water and
treated with an excess of NazSO4. If the masses of the BaSO4 precipitate formed is 0.4105 g, what is the
percent by mass of Ba in the original unknown compound?
A. 37.52 %
B. 35.72%
C. 32.57%
D. 37.72 %
25. What is the concentration (in molarity ) of a NaOH solution if 25.0 mL of the solution are needed to
neutralize 17.4 ml of a 0.312 M HCI solution?
A. 0.217 M
B. 0.127 M
C. 0.271 M
D. 0.712 M

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