Homework Answers
11) KCl is neutral - no rxn with NaOH - 0 moles
12)H2SO4 - dibasic acid -0.05moles react with 0.1 mol NaOH
13) LiOH - a base - no rxn- 0 moles
14)HNO3 -monobasic acid - 0.1 mol to react with 0.1 mol NaOH
15)citric acid - tribasic acid- so requires 0.033 moles
16) glucose is neutral , so pH = 7.0
17)pOH = 2, so pH = 14-2 = 12
18)[OH-] = 10-12 so pOH = -log [OH-] = 12 and thus pH = 14-12=2
19)pH =-log (2.5x10-6) = 5.6
20)pOH = 7.4 , thus pH = 14-7.4 = 6.6
21)carbonic acid H2CO3 , a cidic
22)NaHCO3 , basic
23) KCl salt of strong acid -strong base - neutral
24) glucose is neither acid or base -neutral
25) pH > 7 are basic.
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please help answer 11-25 please i have already submitted this but only got 1-10 13 UH HN C) tertiary alcohol D) phe...
can’t figure any of this out, please help all of it 1-5. Match the functional group...
can’t figure any of this out, please help all of it
1-5. Match the functional group indicated by the arrow to the correct classification Quinine used to treat malaria 2. OH Hºme Church Hyco-OH Nysatin A, 3. CH, CH, OH A) primary alcohol B) secondary alcohol C) tertiary alcohol D) phenol E) thiol сн, он CH, OH не OH CONH2 -OH Tetracycline, an antibiotic 6-10. Given the following list of acid strengths of some medications, match the acid to the...
NAME: 1 Fill in the blanks with the appropriate value. Please express concentration values to 3...
NAME: 1 Fill in the blanks with the appropriate value. Please express concentration values to 3 significant figures. Dont forget the appropriate units (M) for [H3O+] and [OH-], where necessary. In addition, express pH and pOH values to two decimal places. a) [H3O+] = 1.00 x 10-'M [OH-]= pH = POH= b) [H3O+]= [OH-]= pH=2.00 POH= c) [H3O+]= [OH-] = 8.57 x 10-3 M pH = pOH = d) [H3O+]= [OH-]= pH= POH= 10.47 2 Label the above solutions as...
What is the pH of a 4.0 x 10-8 M solution of HCl(aq) at 25 °C?...
What is the pH of a 4.0 x 10-8 M solution of HCl(aq) at 25 °C? Report your answer to the hundredths place. 6.53 0 pH = Consider the reaction. CH,CH,0 + HCECH =HCEC:" + CH, CH,OH Classify each reactant and product as an acid or base according to the Brønsted theory. Acid Base CH,CH,0 HCEC" HCECH CH,CH, OH Answer Bank Each value represents a different aqueous solution at 25°C. Classify each solution as acidic, basic, or neutral. Acidic Basic...
I need help with all three questions please and thank you! *four 4. Consider the reaction:...
I need help with all three questions please and thank
you!
*four
4. Consider the reaction: 2 SOX) + g) = 2 50 (8) A 2.0 L flask was filled with 0.0400 moles o. 00200 moles of O. At equilibrium 0.0296 moles of so, were found what is the equilibrium constant for this reaction? A) 2.556 x 10 + B) 3.664 x 10 C) 6.953 x 102 D) 9.964 x 102 E) 3.116 x 10 5. What is a conjugate...
1- Calculating [H+] for Pure Water: In a certain acidic solution at 25 ∘C, [H+] is...
1- Calculating [H+] for Pure Water: In a certain acidic solution at 25 ∘C, [H+] is 100 times greater than [OH −]. What is the value for [OH −] for the solution? In a certain acidic solution at 25 , [] is 100 times greater than [ ]. What is the value for [ ] for the solution? 1.0×10−8 M 1.0×10−7 M 1.0×10−6 M 1.0×10−2 M 1.0×10−9 M 2. ± Acid-Base Relationships in Water: Water ionizes by the equation H2O(l)⇌H+(aq)+OH−(aq)The...
i want answer to all questions please Answer: 29) Consider the following generalized buffer solution equilibrium: When a small amount of a strong base such as sodium hydroxide is added to the so...
i want answer to all questions please
Answer: 29) Consider the following generalized buffer solution equilibrium: When a small amount of a strong base such as sodium hydroxide is added to the solution, which of the four species shown would experience an increase in concentration? A) BH B)H C) HO D)B E None of the species would increase in concentration. Answer: ( 30) What is true about a solution whose pH is less than 7 at 25°C? A) It has...
QUESTION 3 Аркы B. Polyprotic C. Lewis Acid D. Proton E. Hydronium F. 7.00 Matching! The...
QUESTION 3 Аркы B. Polyprotic C. Lewis Acid D. Proton E. Hydronium F. 7.00 Matching! The name for the polytomic ion H307 In a reaction, the compound that accepts the electron pair Acids and conjugate bases always differ by a ka If the pOH is high, the solution is (acidic / basic). Numerical value for Kw The higher the value of Kz, the stronger/weaker) the acid is. 4 Ba(CH3COO)2 is a[n) (acidic/basic/neutral) salt in water. NH4Br is ain) (acidic/basic/neutral) salt...
answer questions 1-3 ame answer questions 1-3 Name Lab Instructor Experiment 11-pH Determination of Solutions and...
answer questions 1-3
ame answer questions 1-3 Name Lab Instructor Experiment 11-pH Determination of Solutions and Buffer Solutions Prelaboratory Exercises Date 1. A solution has a pH of 5.50. a. What is the pOH of this solution? b. Is the solution acidic, basic, or neutral? Give reasons c. Calculate the concentration of [H O'] and [OH-1 in this solution. 2. Solution A has a hydronium ion concentration of 1.3 x 10- M. Solution B has a hydroxide ion concentration of...
please help me with 15.35 and 15.38 and 15.57 thank you $ $ $ i a...
please help me with 15.35 and 15.38 and 15.57
thank you
$ $ $ i a solution 15.34 Det : $ --.5 X 10M use of the - 15.6 and е ion a Solution in which (OH 1 = 8.33 X 10M Determine the hydrogen ion or hydroxide ion concentra- tion in each of the following solutions, as appropriate. (a) a solution in which [ H 0 *) = 9.02 X 10 M b) a solution in which (OH) =...
Please help. The answer to this question has been wrong both times I have submitted it...
Please help. The answer to this question has been wrong both times
I have submitted it on here. I really need to understand
this.
Assume you dissolve 0.175 g of the weak acid benzoic acid, CH, CO,H, in enough water to make 1.00 x 102 mL of solution and then titrate the solution with 0.182 M NaOH. K, for benzoic acid = 6.3 x 10-5.) CH3CO, H(aq) + OH(aq) = CHCO2 (aq) + H2O(C) What was the pH of the...
can’t figure any of this out, please help all of it
1-5. Match the functional group indicated by the arrow to the correct classification Quinine used to treat malaria 2. OH Hºme Church Hyco-OH Nysatin A, 3. CH, CH, OH A) primary alcohol B) secondary alcohol C) tertiary alcohol D) phenol E) thiol сн, он CH, OH не OH CONH2 -OH Tetracycline, an antibiotic 6-10. Given the following list of acid strengths of some medications, match the acid to the...
NAME: 1 Fill in the blanks with the appropriate value. Please express concentration values to 3 significant figures. Dont forget the appropriate units (M) for [H3O+] and [OH-], where necessary. In addition, express pH and pOH values to two decimal places. a) [H3O+] = 1.00 x 10-'M [OH-]= pH = POH= b) [H3O+]= [OH-]= pH=2.00 POH= c) [H3O+]= [OH-] = 8.57 x 10-3 M pH = pOH = d) [H3O+]= [OH-]= pH= POH= 10.47 2 Label the above solutions as...
What is the pH of a 4.0 x 10-8 M solution of HCl(aq) at 25 °C? Report your answer to the hundredths place. 6.53 0 pH = Consider the reaction. CH,CH,0 + HCECH =HCEC:" + CH, CH,OH Classify each reactant and product as an acid or base according to the Brønsted theory. Acid Base CH,CH,0 HCEC" HCECH CH,CH, OH Answer Bank Each value represents a different aqueous solution at 25°C. Classify each solution as acidic, basic, or neutral. Acidic Basic...
I need help with all three questions please and thank
you!
*four
4. Consider the reaction: 2 SOX) + g) = 2 50 (8) A 2.0 L flask was filled with 0.0400 moles o. 00200 moles of O. At equilibrium 0.0296 moles of so, were found what is the equilibrium constant for this reaction? A) 2.556 x 10 + B) 3.664 x 10 C) 6.953 x 102 D) 9.964 x 102 E) 3.116 x 10 5. What is a conjugate...
i want answer to all questions please
Answer: 29) Consider the following generalized buffer solution equilibrium: When a small amount of a strong base such as sodium hydroxide is added to the solution, which of the four species shown would experience an increase in concentration? A) BH B)H C) HO D)B E None of the species would increase in concentration. Answer: ( 30) What is true about a solution whose pH is less than 7 at 25°C? A) It has...
QUESTION 3 Аркы B. Polyprotic C. Lewis Acid D. Proton E. Hydronium F. 7.00 Matching! The name for the polytomic ion H307 In a reaction, the compound that accepts the electron pair Acids and conjugate bases always differ by a ka If the pOH is high, the solution is (acidic / basic). Numerical value for Kw The higher the value of Kz, the stronger/weaker) the acid is. 4 Ba(CH3COO)2 is a[n) (acidic/basic/neutral) salt in water. NH4Br is ain) (acidic/basic/neutral) salt...
answer questions 1-3
ame answer questions 1-3 Name Lab Instructor Experiment 11-pH Determination of Solutions and Buffer Solutions Prelaboratory Exercises Date 1. A solution has a pH of 5.50. a. What is the pOH of this solution? b. Is the solution acidic, basic, or neutral? Give reasons c. Calculate the concentration of [H O'] and [OH-1 in this solution. 2. Solution A has a hydronium ion concentration of 1.3 x 10- M. Solution B has a hydroxide ion concentration of...
please help me with 15.35 and 15.38 and 15.57
thank you
$ $ $ i a solution 15.34 Det : $ --.5 X 10M use of the - 15.6 and е ion a Solution in which (OH 1 = 8.33 X 10M Determine the hydrogen ion or hydroxide ion concentra- tion in each of the following solutions, as appropriate. (a) a solution in which [ H 0 *) = 9.02 X 10 M b) a solution in which (OH) =...
Please help. The answer to this question has been wrong both times
I have submitted it on here. I really need to understand
this.
Assume you dissolve 0.175 g of the weak acid benzoic acid, CH, CO,H, in enough water to make 1.00 x 102 mL of solution and then titrate the solution with 0.182 M NaOH. K, for benzoic acid = 6.3 x 10-5.) CH3CO, H(aq) + OH(aq) = CHCO2 (aq) + H2O(C) What was the pH of the...
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