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To formulate a buffer of a particular desired pH, the
To formulate a buffer of a particular desired pH, the chemist should ...A. Choose a weak acid where the desired pH is close to the Ka of the acidB. Choose a conjugate acid-base pair with a Kb always e… read more
DebdattaBhattacharya
DebdattaBhattacharya
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When a strong base is added to a buffer, A. [-] decreases
When a strong base is added to a buffer,A. [B-] decreases slightlyB. [HB] decreases slightlyC. pH of the solution decreases slightlyD. the ratio of the weak acid and weak base remains constantE. pOH o… read more
LogicPro
LogicPro
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To formulate a buffer of a particular desired pH, the
To formulate a buffer of a particular desired pH, the chemist should...A. Choose a weak acid with a pKa close to the desired pHB. Choose a conjugate acid-base pair with a Kb always equal to 7C. Mix a … read more
DebdattaBhattacharya
DebdattaBhattacharya
Doctoral Degree
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When a strong acid is added to a buffer, A. pOH of the
When a strong acid is added to a buffer,A. pOH of the solution decreases slightlyB. pH of the solution increases slightlyC. the ratio of the weak acid and weak base remains constantD. [HB] decreases s… read more
Patriciar1117
Patriciar1117
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Question 17 The function of a buffer is to A. Act as a
Question 17The function of a buffer is toA. Act as a strong acid.B. Be a strong base.C. Maintain a neutral pH.D. Maintain the pH of a solution.E. Change color at the end point of a titration.4 points… read more
Sandhya
Sandhya
Master's Degree
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3. Silk buffer solution consisting of NH30.02M and
3. Silk buffer solution consisting of NH30.02M and NH4Cl0.025M (pKb = 4.75). To calculate: a. pH of the buffer solution; b. how the pH of the buffer solution varies by adding 0.004 moles of HCl; c. ho… read more
Jaun
Jaun
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I am looking for Buffer pH calculations. Buffer in
Hi I am looking for Buffer pH calculations JA: The Tutor can help you get an A on your homework or ace your next test. Tell me more about what you need help with so we can help you best. Customer: Buf… read more
DebdattaBhattacharya
DebdattaBhattacharya
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Buffer solution contains 0.0468 M acetic acid (HC2H3O2) and
buffer solution contains 0.0468 M acetic acid (HC2H3O2) and 0.0263 M of the acetate ion (C2H3O2–) and has a pH=4.50. If 100 mL of 0.00725 M HCl is added to 100.00 mL of buffer, what is the new pH?… read more
Erwin Garcia
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The Henderson-Hasselbalch equation is used to A. calculate
The Henderson-Hasselbalch equation is used to A. calculate reduction potential B. calculate dissociation constants C. estimate voltaic potential D. estimate the pH of a buffer solution… read more
Neo
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A buffer solution contains 0.292 M ammonium chloride and
A buffer solution contains 0.292 M ammonium chloride and 0.335 M ammonia.If 0.0568 moles of hydroiodic acid are added to 250 mL of this buffer, what is the pH of the resulting solution?… read more
Sandhya
Sandhya
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CHEMISTRY QUESTIONS - Can you help me by looking over these
CHEMISTRY QUESTIONS - Can you help me by looking over these 8 questions I answered. I have some of them wrong. I can attach it in a microsoft word doc for you. Thanks. I am pasting the questions below… read more
R.R. Jha
R.R. Jha
Bachelor's Degree
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When a solutions pH 3.2 its pOH A. 3.2 also B. 14.0 C. 7.0 D. 10.8 Wha
When a solution's pH = 3.2 its pOH = A. 3.2 also B. 14.0 C. 7.0 D. 10.8 What is the pH of a solution whose [H+] is equal to 1.0 X 10-3 M? A. 3 B. -3 C. 6 D. -6 If a solution has a pH of 13 it will hav… read more
R.R. Jha
R.R. Jha
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1) Create a buffer with a pH 5.5 for 1M sodium acetate and
1) Create a buffer with a pH= 5.5 for 1M sodium acetate and say what amounts of each you need to make this buffer. 2) What would happen to the pH if 10mL 1M HCl was added? Thanks so much!… read more
steve
steve
Doctoral Degree
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25) Which statement about alcohols is not correct A) alcohols
25) Which statement about alcohols is not correct? A) alcohols contain hydroxyl functional groups. B) Alcohols are organic molecules C) alcohols contain nitrogen D) alcohols are named by their greek p… read more
The Science Tutor
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a. calculate the silver ion concentration in a saturated solution
a. calculate the silver ion concentration in a saturated solution of silver (I) carbonate (ksp=8.1x10-12). b. calculate the pH of a buffer solution prepared by dissolving .2 mole of cyanic acid (HCNO)… read more
peppers18
peppers18
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1. What is the [H+] concentration in a urine sample that has
1. What is the [H+] concentration in a urine sample that has a pH of 6? A) 10-6 M B) 10-8 M C) 106 M D) 10-14 M E) 8 M 2. Why does DNA disassociate when the pH is raised above 9? A) Protons dissociate… read more
Chem&Math
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Calculate the [H+] for a) a solution with a pH ...
Calculate the [H+] for: a) a solution with a pH = 7.0 b) tap water with a pH = 6.4 c) a solution with a pH = 4.5 Is there an equation? Please show me how to use it. Thanks.… read more
abozer
abozer
Bachelor's Degree
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how do i calculate the pH of a buffer that is 0.150 M in ...
how do i calculate the pH of a buffer that is 0.150 M in NaHCO3 and 0.155 M in Na2CO339001.1239863426… read more
DrTutor
DrTutor
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