Homework Answers
Answer:
1.Relative pH of the solution is 8 or higher
Hence the solution is basic.
2. Acid will increase hydrogen ion concentration in the solution .
Explanation:
Acids Are solutions that lose hydrogen ion that is "donating hydrogen ions " and
Bases are solutions that pull hydrogen ion out of solution and onto themselves that is "accepting hydrogen ions"
An indicator changes color when it encounters an acid or base , respond to levels of hydrogen ions in the solution.
Red cabbage contain an indicator pigment molecule ( flavin ) which is a type of anthocyanin.
Acid solution turn an anthocyanin Red
Neutral solution turn it purple
Basic solution turn it greenish - yellow.
As per your given figure solution is yellow hence the solution is basic
Hope you like it
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March 28, 2020 at 9:19:16 AM 1,283 of 1,295 1. The solution in the test tube...
Weak acid-base indicator equilibria Step 1: Obtain a small test tube and add approximately 5mL wa...
Weak acid-base indicator equilibria
Step 1: Obtain a small test tube and add
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violet indicator, and record the color of the
solution.
Step 2: Add ~4 drops of 6 M HCl to the solution,
and record the color of the solution.
(be careful when handling concentrated acids and bases)
Step 3: Add 6 M NaOH until the
color of the solution shifts back to its original color.
Estimate the pH...
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need help with 42 & 44 I am trying to figure out how to make a...
need help with 42 & 44
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am trying to figure out how to make a desired buffer
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2. How can you determine which acid is diprotic?
3. using the answers to questions one and two, which acid is
diprotic?
4. Which base has more hydroxide ions per molecule?
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Weak acid-base indicator equilibria
Step 1: Obtain a small test tube and add
approximately 5mL water. Next, add 10 drops of a methyl
violet indicator, and record the color of the
solution.
Step 2: Add ~4 drops of 6 M HCl to the solution,
and record the color of the solution.
(be careful when handling concentrated acids and bases)
Step 3: Add 6 M NaOH until the
color of the solution shifts back to its original color.
Estimate the pH...
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2-5
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need help with 42 & 44
I
am trying to figure out how to make a desired buffer
42. What volumes of 0.50 M HNO2 and 0.50 M NaNO2 must be mixed to prepare 1.00 L of a solution buffered at pH = 3.55? 43. Consider a solution that contains both C5H5N and C5H5NHNO3. Calculate the ratio (C3H5N]/[C3H5NH+] if the solution has the following pH values: a. pH = 4.50 c. pH = 5.23 l g de to b. pH...
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2. How can you determine which acid is diprotic?
3. using the answers to questions one and two, which acid is
diprotic?
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