24. Upon titration, a mixture of weak acid and another weak acid whose Ka values are not too different will provide how many equivalences point break? b. 2 a. 3 a. d. none 25. What is the molar concentration of a 10.00 mL of a monoprotic acid that is neutralized by 200.0 mg of Na2CO3 (105.99)? None of the choices 0.3774 M b. c. a. c. d. 1 26. A 1.05-gram sample of butter is refluxed with ethanolic KOH and required 10.4 mL of 0.1875 M HCI to reach the phenolphthalein end point. If blank determination required 0.7 mL of the same standard acid, calculate the saponification value. Calculate the saponification number. 97.17 b. 65 83 d. 45 C. 0.7540 M 0.1887 M

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d. Temperature
24. Upon titration, a mixture of weak acid and another weak acid whose Ka values are not too different will provide
how many equivalences point break?
b. 2
c. 1
d. none
25. What is the molar concentration of a 10.00 mL of a monoprotic acid that is neutralized by 200.0 mg of Na2CO3
(105.99)?
a. None of the choices
b. 0.3774 M
c. 0.7540 M
d. 0.1887 M
26. A 1.05-gram sample of butter is refluxed with ethanolic KOH and required 10.4 mL of 0.1875 M HCI to reach
the phenolphthalein end point. If blank determination required 0.7 mL of the same standard acid, calculate the
saponification value. Calculate the saponification number.
a. 97.17
b. 65
c. 83
d. 45
Transcribed Image Text:d. Temperature 24. Upon titration, a mixture of weak acid and another weak acid whose Ka values are not too different will provide how many equivalences point break? b. 2 c. 1 d. none 25. What is the molar concentration of a 10.00 mL of a monoprotic acid that is neutralized by 200.0 mg of Na2CO3 (105.99)? a. None of the choices b. 0.3774 M c. 0.7540 M d. 0.1887 M 26. A 1.05-gram sample of butter is refluxed with ethanolic KOH and required 10.4 mL of 0.1875 M HCI to reach the phenolphthalein end point. If blank determination required 0.7 mL of the same standard acid, calculate the saponification value. Calculate the saponification number. a. 97.17 b. 65 c. 83 d. 45
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