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Recent questions and answers 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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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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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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138k
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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?
answered
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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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?
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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 hydrochloric acid solution when measured with a pH meter at 25°C?
answered
Mar 1
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Analytical Chemistry
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TheScientist
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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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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.
answered
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 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
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AudraNowlin6
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44
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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?
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Feb 22
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Analytical Chemistry
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HenryBorella
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0
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1
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25
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What is the pH of a solution if the pH meter reading is 3.7?
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Feb 22
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Analytical Chemistry
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Ezra52525444
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2.0k
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36
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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?
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Feb 22
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Analytical Chemistry
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KaraTva8370
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2.3k
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0
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1
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33
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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?
answered
Feb 22
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Analytical Chemistry
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WallaceMaria
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2.4k
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0
votes
1
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13
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What is the pH of a 0.1 M solution of hydrochloric acid if the pH meter reading is 1.5?
answered
Feb 22
in
Analytical Chemistry
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JoelPrentice
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1.4k
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0
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1
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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?
answered
Feb 22
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Analytical Chemistry
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AngelikaYvu6
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0
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1
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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?
answered
Feb 20
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Analytical Chemistry
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NadiaN491716
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2.1k
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Recent questions and answers in Analytical Chemistry
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