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15. What volume of a 0.452 M NaOH solution is needed to neutralize 85.0 mL of a 0.176 M solution of H2SO4? A. 218.3 mL B. 66.2 mL C. 38.4 mL D. 436.6 mL

15. What volume of a 0.452 M NaOH solution is needed to neutralize 85.0 mL of a 0.176 M solution of H2SO4? A. 218.3 mL B. 66.2 mL C. 38.4 mL D. 436.6 mL

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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15. What volume of a 0.452 M NaOH solution is needed to neutralize 85.0 mL of a 0.176 M solution of H2SO4? A. 218.3 mL B. 66.2 mL C. 38.4 mL D. 436.6 mL 16. What is the formula which describes the relationship between the pressure, volume, temperature, and moles? PV= PV A. T1 PV1 = PV2 B. nīTi 2212 PT2 = P,T1 C. mV1 PT, = D. mV1 17. If a fixed amount of a gas is at a pressure of 2.71 atm and has a volume of 85.3 L at a temperature of 173.4 K, what is the final temperature of the gas if the pressure changes to 1.04 atm in a 105.3 L container? A. 49.8 K В. 75.9 К C. 366.0 K. D. 82.1 K 18. Which represents the definition of pressure? A. volume/density B. temperature × area C. moles/volume D. force/area 19. What is alkalinity of a water sample? A. is a measure of buffering capacity of water. it is expressed in ppm of CaCO3 B. is a measure of total salt content in a body of water C. is the sum of all titrable acid present in the water sample. D. is a measure of how aggressive water is at corroding pipes and fixtures. 20. What are the principle ions contributing to the alkalinity of water? A. CO3²- /HCO3° B. SO,2/HSO4 C. NO3/HNO3 D. NH4/NH4*
Transcribed Image Text:15. What volume of a 0.452 M NaOH solution is needed to neutralize 85.0 mL of a 0.176 M solution of H2SO4? A. 218.3 mL B. 66.2 mL C. 38.4 mL D. 436.6 mL 16. What is the formula which describes the relationship between the pressure, volume, temperature, and moles? PV= PV A. T1 PV1 = PV2 B. nīTi 2212 PT2 = P,T1 C. mV1 PT, = D. mV1 17. If a fixed amount of a gas is at a pressure of 2.71 atm and has a volume of 85.3 L at a temperature of 173.4 K, what is the final temperature of the gas if the pressure changes to 1.04 atm in a 105.3 L container? A. 49.8 K В. 75.9 К C. 366.0 K. D. 82.1 K 18. Which represents the definition of pressure? A. volume/density B. temperature × area C. moles/volume D. force/area 19. What is alkalinity of a water sample? A. is a measure of buffering capacity of water. it is expressed in ppm of CaCO3 B. is a measure of total salt content in a body of water C. is the sum of all titrable acid present in the water sample. D. is a measure of how aggressive water is at corroding pipes and fixtures. 20. What are the principle ions contributing to the alkalinity of water? A. CO3²- /HCO3° B. SO,2/HSO4 C. NO3/HNO3 D. NH4/NH4*
11. In an experiment to standardize sodium hydroxide solution, a 0.5111g sample of potassium hydrogen phthalate, KHC8H4O4 (204.44g/mol) was dissolved in 50mL of distilled water in a 125mL flask. The sample was titrated to end point with 25.05mL of sodium hydroxide solution. What is the molar concentration of the NaOH? A. 0.0998 M B. 0.2450M C. 0.0010M D. 1.0000M 12. What volume of water must be added to 300 mL of 0.75 M HCl to dilute the solution to 0.25 M? А. 900 mL B. 600 mL С. 300 mL D. 930 mL 13. Vinegar is a solution of acetic acid, HC2H3O2 , dissolved in water. A 5.54-g sample of vinegar was neutralized by 30.10 mL of 0.100 M NaOH. What is the percent by weight of acetic acid in the vinegar? A. 0.0543% В. 1.08% С. 3.26% D. 5.43% 14. During a titration, it is found that 53.5 mL of a solution of NaOH is needed to neutralize a solution that contains 1.86 g of HCl. What is the concentration of the NaOH solution? A. 0.051 M B. 0.686 M С. 1.05 М D. 0.953 M
Transcribed Image Text:11. In an experiment to standardize sodium hydroxide solution, a 0.5111g sample of potassium hydrogen phthalate, KHC8H4O4 (204.44g/mol) was dissolved in 50mL of distilled water in a 125mL flask. The sample was titrated to end point with 25.05mL of sodium hydroxide solution. What is the molar concentration of the NaOH? A. 0.0998 M B. 0.2450M C. 0.0010M D. 1.0000M 12. What volume of water must be added to 300 mL of 0.75 M HCl to dilute the solution to 0.25 M? А. 900 mL B. 600 mL С. 300 mL D. 930 mL 13. Vinegar is a solution of acetic acid, HC2H3O2 , dissolved in water. A 5.54-g sample of vinegar was neutralized by 30.10 mL of 0.100 M NaOH. What is the percent by weight of acetic acid in the vinegar? A. 0.0543% В. 1.08% С. 3.26% D. 5.43% 14. During a titration, it is found that 53.5 mL of a solution of NaOH is needed to neutralize a solution that contains 1.86 g of HCl. What is the concentration of the NaOH solution? A. 0.051 M B. 0.686 M С. 1.05 М D. 0.953 M
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