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The pH of an aqueous solution of the salt Na SO, (sodium sulfate) will a) be...
Consider a 0.20 M solution of the salt, sodium cyanide, NaCN. A) What acid and What...
Consider a 0.20 M solution of the salt, sodium cyanide, NaCN. A) What acid and What base reacted to from this salt? B) Classify the acid above as a strong or weal acid. Classify the base as a strong or weak base? C) Will the salt solution be acidic, basic, or neutural? D) Calculate the ph of the solution? The Ka of HCN is 4.9 x 10-10?
28) a) What is the pH of a 0.159 M aqueous solution of ammonium iodide, NHAI pH- This Solution is...
please write clearly and circle answer thx
28) a) What is the pH of a 0.159 M aqueous solution of ammonium iodide, NHAI pH- This Solution is acid, basic, or neutral b) What is the pH of a 0.250 M aqueous solution of sodium acetate, NaCH3COO? pH- This Solution is acid, basic, or neutral c) The substance benzoic acid (C6HsCOOH) is a weak acid (Ka - 6.3x10-s) What is the pH of a 0.123 M aqueous solution of sodium benzoate,...
22. Which of the following substances, when added to water, will produce a solution with a pH abo...
22. Which of the following substances, when added to water, will produce a solution with a pH above 7.0? A. NHaCİ B. CHsNHCl C. NH4NO3 D. HOCİ E. NaoCi 23. The following acids are listed in order of decreasing acid strength in water.HI> HNO2> CH,COOH> HOCI HCN. According to Bronsted-Lowry theory, which of the following ions is the weakest base? A. I B. NO. C. CHCOo D. ocT E. CN 24. The following reaction is described as: H2S + H2S...
questions are in red Consider the following salt solutions: (i) NH4Cl – NH+ + C- Notice...
questions are in red
Consider the following salt solutions: (i) NH4Cl – NH+ + C- Notice that as a salt, NH,Cl dissociates completely in solution. So, what are the parents of this salt? The cation, NH, in this case, is from the base obtained by adding enough OHto balance the positive charge(s) on the cation; Viz, NH,OH. Similarly, the anion, Cl. comes from the acid. So the parent acid can be obtained by adding enough Hi to neutralize the charge...
The salt sodium formate, NaCHO2(s), completely dissociates into Na+(aq) and CHO2−(aq) in an aqueous environment. The...
The salt sodium formate, NaCHO2(s), completely dissociates into Na+(aq) and CHO2−(aq) in an aqueous environment. The Na+ ion has no acid or base properties, but the formate ion is the conjugate base of the weak acid, formic acid. Part a. Write a balanced chemical equation showing how the formate ion reacts with water to affect the pH of the resulting solution (you can ignore the sodium ion in your balanced equation). Part b. Find the pH of a 0.100 M...
1. For each of the following, predict whether an aqueous solution of the salt would be...
1. For each of the following, predict whether an aqueous solution of the salt would be acidic, basic or neutral. Explain. a. Nacis b. NaF c. NHIS d. KHCO3 e. (CH3)2NH2NO31 2. What is the pH of a solution that is 0.060 M in potassium propionate (CH3CH2COOK) and 0.085M in propionic acid (CH3CH2COOH)? The Ka for propionic acid is 1.3x10-5.5 3. Suppose you need to prepare a buffer for a pH of 10.6. An acid-base pair (HA/A') to use has...
An aqueous solution is made with the salt obtained from combining the weak acid acetic acid,...
An aqueous solution is made with the salt obtained from combining the weak acid acetic acid, CH3CO2H, and the weak base methylamine, CH2NH2. Is the solution acidic, basic, or neutral? Ka=1.8×10−5 and Kb=4.4×10−4
5) Which of the following salts forms aqueous solutions with pli>T! Na:CO, e. Na SO, NaBr...
5) Which of the following salts forms aqueous solutions with pli>T! Na:CO, e. Na SO, NaBr d. NHL.CI 6) Which of the following is not a buffer system solution containing roughly equal concentrations of fluoride ion and hydrofluoric acid. c. phosphate ion and monophosphate ion. chloride ion and hydrochloric acid. d s ulfite ion and bisulfite ion. 7) What is indicated by the shape of the titration curve? b. Volume of titrant a. A diprotic acid was titrated with a...
Aqueous sulfuric acid (H,SO) reacts with solid sodium hydroxide (NaOH) to produce aqueous sodium sulfate (Na,SO)...
Aqueous sulfuric acid (H,SO) reacts with solid sodium hydroxide (NaOH) to produce aqueous sodium sulfate (Na,SO) and liquid water (1,0). What is the theoretical yield of water formed from the reaction of 20.6 g of sulfuric acid and 24.9 g of sodium hydroxide? Be sure your answer has the correct number of significant digits in it. x 5 ?
13) A 0.0035 M aqueous solution of a particular compound has pOH 11.54. The compound is...
13) A 0.0035 M aqueous solution of a particular compound has pOH 11.54. The compound is a) a weak base b) a weak acid c) a strong base a strong acid e) a salt 14) In basic solution, a) [H30'> [OH] b) [H30 ]- [OH1 [Hs0)< [OH] d) (OH]<7.00 e) [OH] =OM 15) The pH of a 0.63 M aqueous solution of hypobromous acid, HBro, at 25°C is 4.17. What is the value of K for HBro? a2.0 x 10...
please write clearly and circle answer thx
28) a) What is the pH of a 0.159 M aqueous solution of ammonium iodide, NHAI pH- This Solution is acid, basic, or neutral b) What is the pH of a 0.250 M aqueous solution of sodium acetate, NaCH3COO? pH- This Solution is acid, basic, or neutral c) The substance benzoic acid (C6HsCOOH) is a weak acid (Ka - 6.3x10-s) What is the pH of a 0.123 M aqueous solution of sodium benzoate,...
22. Which of the following substances, when added to water, will produce a solution with a pH above 7.0? A. NHaCİ B. CHsNHCl C. NH4NO3 D. HOCİ E. NaoCi 23. The following acids are listed in order of decreasing acid strength in water.HI> HNO2> CH,COOH> HOCI HCN. According to Bronsted-Lowry theory, which of the following ions is the weakest base? A. I B. NO. C. CHCOo D. ocT E. CN 24. The following reaction is described as: H2S + H2S...
questions are in red
Consider the following salt solutions: (i) NH4Cl – NH+ + C- Notice that as a salt, NH,Cl dissociates completely in solution. So, what are the parents of this salt? The cation, NH, in this case, is from the base obtained by adding enough OHto balance the positive charge(s) on the cation; Viz, NH,OH. Similarly, the anion, Cl. comes from the acid. So the parent acid can be obtained by adding enough Hi to neutralize the charge...
1. For each of the following, predict whether an aqueous solution of the salt would be acidic, basic or neutral. Explain. a. Nacis b. NaF c. NHIS d. KHCO3 e. (CH3)2NH2NO31 2. What is the pH of a solution that is 0.060 M in potassium propionate (CH3CH2COOK) and 0.085M in propionic acid (CH3CH2COOH)? The Ka for propionic acid is 1.3x10-5.5 3. Suppose you need to prepare a buffer for a pH of 10.6. An acid-base pair (HA/A') to use has...
5) Which of the following salts forms aqueous solutions with pli>T! Na:CO, e. Na SO, NaBr d. NHL.CI 6) Which of the following is not a buffer system solution containing roughly equal concentrations of fluoride ion and hydrofluoric acid. c. phosphate ion and monophosphate ion. chloride ion and hydrochloric acid. d s ulfite ion and bisulfite ion. 7) What is indicated by the shape of the titration curve? b. Volume of titrant a. A diprotic acid was titrated with a...
Aqueous sulfuric acid (H,SO) reacts with solid sodium hydroxide (NaOH) to produce aqueous sodium sulfate (Na,SO) and liquid water (1,0). What is the theoretical yield of water formed from the reaction of 20.6 g of sulfuric acid and 24.9 g of sodium hydroxide? Be sure your answer has the correct number of significant digits in it. x 5 ?
13) A 0.0035 M aqueous solution of a particular compound has pOH 11.54. The compound is a) a weak base b) a weak acid c) a strong base a strong acid e) a salt 14) In basic solution, a) [H30'> [OH] b) [H30 ]- [OH1 [Hs0)< [OH] d) (OH]<7.00 e) [OH] =OM 15) The pH of a 0.63 M aqueous solution of hypobromous acid, HBro, at 25°C is 4.17. What is the value of K for HBro? a2.0 x 10...
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