88. How much of a 5.0 M sucrose solution should you use to make 85.0 mL of a 0.040 M solution?

Chemistry
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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Exercises 479
86. To what volume should you dilute 75 mL of a 10.0 M
H,SO4 solution to obtain a 1.75 M H,SO4 solution?
88. How much of a 5.0 M sucrose solution should you use to
make 85.0 mL of a 0.040 M solution?
90. Determine the volume of 0.225 M KOH solution required
nto neutralize each sample of sulfuric acid. The neutraliza-
tion reaction is:
H,SO,(aq) + 2 KOH(aq)
K,SO4(aq) + 2 H,O(!)
(a) 45 mL of 0.225 M H,SO4
(b) 185 mL of 0.125 M H2SO4
(c) 75 mL of 0.100 M H,SO4
92. Consider the reaction:
K,S(aq) + Co(NO3)2(aq)
What volume of 0.225 M K2S solution is required to com-
pletely react with 175 mL of 0.115 M Co(NO3)2?
2 KNO3(aq) + CoS(s)
94. A 25.0-mL sample of an unknown HCIO4 solution re-
quires 45.3 mL of 0.101 M NaOH for complete neutraliza-
tion. What was the concentration of the unknown HCIO4
in
Transcribed Image Text:Exercises 479 86. To what volume should you dilute 75 mL of a 10.0 M H,SO4 solution to obtain a 1.75 M H,SO4 solution? 88. How much of a 5.0 M sucrose solution should you use to make 85.0 mL of a 0.040 M solution? 90. Determine the volume of 0.225 M KOH solution required nto neutralize each sample of sulfuric acid. The neutraliza- tion reaction is: H,SO,(aq) + 2 KOH(aq) K,SO4(aq) + 2 H,O(!) (a) 45 mL of 0.225 M H,SO4 (b) 185 mL of 0.125 M H2SO4 (c) 75 mL of 0.100 M H,SO4 92. Consider the reaction: K,S(aq) + Co(NO3)2(aq) What volume of 0.225 M K2S solution is required to com- pletely react with 175 mL of 0.115 M Co(NO3)2? 2 KNO3(aq) + CoS(s) 94. A 25.0-mL sample of an unknown HCIO4 solution re- quires 45.3 mL of 0.101 M NaOH for complete neutraliza- tion. What was the concentration of the unknown HCIO4 in
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  • 5.0 M sucrose
  • 85.0 mL of 0.040 M solution
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