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Recent questions in Analytical Chemistry
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What is the pH of a solution with a hydrogen ion concentration of 4.2 x 10^-5 M? Use a pH meter to determine the pH of the solution and compare it to the theoretical value calculated using the Henderson-Hasselbalch equation.
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Mar 1
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Analytical Chemistry
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TheScientist
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What is the pH of a solution with a hydrogen ion concentration of 3.5 x 10^-5 M, as measured using a pH meter?
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Mar 1
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Analytical Chemistry
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TheScientist
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What is the pH of a solution that has a hydrogen ion concentration of 2.5 x 10^-7 M? Determine the pH using a pH meter and state whether the solution is acidic, neutral, or basic based on the calculated pH value.
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Mar 1
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Analytical Chemistry
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TheScientist
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What is the pH of a 0.1 M solution of hydrochloric acid when measured using a pH meter? Show the step-by-step calculations and include the proper use of significant figures in your answer.
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Mar 1
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Analytical Chemistry
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TheScientist
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What is the pH of a 0.1 M solution of hydrochloric acid (HCl) measured using a pH meter at 25°C?
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Mar 1
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Analytical Chemistry
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TheScientist
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What is the pH of a 0.1 M solution of hydrochloric acid (HCl) at 25°C using a pH meter?
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Mar 1
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Analytical Chemistry
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TheScientist
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What is the pH level of a 0.1 M solution of hydrochloric acid (HCl) measured using a pH meter?
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Mar 1
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Analytical Chemistry
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TheScientist
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What is the pH of a 0.1 M solution of hydrochloric acid (HCl) at 25°C, measured using a pH meter with a sensitivity of 0.01 pH units?
asked
Mar 1
in
Analytical Chemistry
by
TheScientist
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138k
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0
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1
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30
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What is the pH of a 0.1 M hydrochloric acid solution at 25°C, determined using a calibrated pH meter with a sensitivity of 0.01 pH units?
asked
Mar 1
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Analytical Chemistry
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TheScientist
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138k
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What is the pH of a 0.1 M hydrochloric acid solution when measured with a pH meter at 25°C?
asked
Mar 1
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Analytical Chemistry
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TheScientist
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138k
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What is the pH of a 0.01 M solution of hydrochloric acid at 25°C, as determined using a pH meter with a precision of ± 0.02 pH units?
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Mar 1
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Analytical Chemistry
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TheScientist
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138k
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What is the purity of a sample of aspirin if its melting point is 134.5°C, compared to the literature value of 136°C? Calculate the percentage purity of the sample using the melting point range and known literature values.
asked
Mar 1
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Analytical Chemistry
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TheScientist
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138k
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0
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1
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44
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What is the purity of an unknown substance if its melting point range is between 125°C to 130°C, and the literature value for the melting point of the pure substance is 132°C?
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Feb 22
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Analytical Chemistry
by
Katja04J6453
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1
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46
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What is the purity of a solid sample of aspirin, and does it meet the purity requirements for use in medicines, if it has a melting point range between 134-136°C?
asked
Feb 22
in
Analytical Chemistry
by
HenryCharles
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2.0k
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1
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26
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What is the pH of a solution if the pH meter reading is 3.7?
asked
Feb 22
in
Analytical Chemistry
by
OliveMatthae
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2.1k
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0
votes
1
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38
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What is the pH value of a solution that has a hydrogen ion concentration of 1.5 x 10^-6 M, as measured using a pH meter?
asked
Feb 22
in
Analytical Chemistry
by
QJXClarice2
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2.5k
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0
votes
1
answer
34
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What is the pH of a solution if the pH meter reading is 7.5 and the temperature of the solution is 25°C?
asked
Feb 22
in
Analytical Chemistry
by
BrianCherry
(
1.7k
points)
0
votes
1
answer
15
views
What is the pH of a 0.1 M solution of hydrochloric acid if the pH meter reading is 1.5?
asked
Feb 22
in
Analytical Chemistry
by
YVMCinda4278
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2.3k
points)
0
votes
1
answer
35
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What is the percentage composition by mass of carbon, hydrogen, and nitrogen in a compound if elemental analysis shows that it contains 54.5% carbon, 9.1% hydrogen, and 36.4% nitrogen?
asked
Feb 22
in
Analytical Chemistry
by
Leif76792351
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2.0k
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0
votes
1
answer
34
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What is the melting point of a sample of aspirin obtained from a drugstore, and how does it compare to the melting point of pure aspirin? Can the purity of the sample be determined from the melting point data?
asked
Feb 20
in
Analytical Chemistry
by
Miguel37A006
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2.3k
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Recent questions in Analytical Chemistry
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