QUESTION 22 A student titrates 55.2 mL of a sulfuric acid solution which contains 1.40 M NaOH. The color change indicates that it takes exactly 37.4 mL of the NaOH solution for the reaction to go to completion. What was the concentration of the original H2SO4 solution? (Write your answer in 3 significant figures)? The balanced equation is: H2SO4 (aq) +2 NaOH (aq) → 2 H₂0 (1) + Na2SO4

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Chapter4: Chemical Reactions
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Problem 4.130QP: Arsenic acid, H3AsO4, is a poisonous acid that has been used in the treatment of wood to prevent...
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QUESTION 22
A student titrates 55.2 mL of a sulfuric acid solution which contains 1.40 M NaOH. The color change indicates that it takes exactly 37.4 mL of the NaOH solution for the
reaction to go to completion. What was the concentration of the original H₂SO4 solution? (Write your answer in 3 significant figures)? The balanced equation is:
H2SO4 (aq) +2 NaOH(aq) → 2 H20 (1) + Na2SO4
U (atomic mass 235.0439) is 45.84% and the
QUESTION 23
A sample of waste from a nuclear reactor contains an unnatural distribution of isotopes of uranium. The abundance of 235 (
abundance of 238 (atomic mass 238.0508) is the remainder. What would the average atomic mass of uranium be in this sample?
(Write your answer in 4 significant figures. Do not include units.)
Transcribed Image Text:QUESTION 22 A student titrates 55.2 mL of a sulfuric acid solution which contains 1.40 M NaOH. The color change indicates that it takes exactly 37.4 mL of the NaOH solution for the reaction to go to completion. What was the concentration of the original H₂SO4 solution? (Write your answer in 3 significant figures)? The balanced equation is: H2SO4 (aq) +2 NaOH(aq) → 2 H20 (1) + Na2SO4 U (atomic mass 235.0439) is 45.84% and the QUESTION 23 A sample of waste from a nuclear reactor contains an unnatural distribution of isotopes of uranium. The abundance of 235 ( abundance of 238 (atomic mass 238.0508) is the remainder. What would the average atomic mass of uranium be in this sample? (Write your answer in 4 significant figures. Do not include units.)
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