Homework Answers
NaC2H3O2 its pH value is 6.9<7 so it is acid in nature
pH=7(neural) ,pH =<7 ( acidic) , pH=>7 (basic)
NH4Cl is acidic because it's pH value is 6.13 and is less than 7
Na2CO3 is basic because it's pH value is 11.78 and is greater than 7
Na2+ +H20 =no reaction
Cl- + H2O = no reaction
NH4+(aq)+ H20(l)=H3O+(aq) +NH3(aq)
CO3 2-(aq)+ H2O(l)=HCO3-(aq)+OH-(aq)
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B. pH of Salt Solutions: Salt Solution: NaC,H,O, Measured pH 6.90 NHC 6.13 Na.co, 10.78 Based...
B. pH of Salt Solutions: Write net-ionic equations for the interaction of the ions in each...
B. pH of Salt Solutions: Write net-ionic equations for the interaction of the ions in each salt with water and explain why each salt is acidic, basic, or neutral as observed by the measured pH values. pH of Salt Solutions: B. Salt Solution: NaC,H,O, NH CI Na,CO, 6.90 6.13 Measured pH HOTTA Based on your measured pH values, indicate whether the aqueous solution of the salt is acidic, basic, or neutral. Write the net-ionic equations for any hydrolysis (reaction with...
PART Ill: MEASURING PH OF VARIOUS SALT SOLUTIONS L Classify each salt as neutral, acidic or...
PART Ill: MEASURING PH OF VARIOUS SALT SOLUTIONS L Classify each salt as neutral, acidic or basic Provide an explanation based on measured pH and show the hydrolysis Salt NaCI ysis reaction to determine which ion hydrolyzes to Salt Type Measured pH Hydrolysis reaction NaCzH302 1.11 0.10 G.02 6.70 7.6 NaHCOs NazCO NHAC NH4C:H:02 il. Calculate Ki for NHaCl using measured pH: Assume that (NH ; 1 is equivalent to initial INH C. Ki for NH4Ch
The pH at 25 °C of an aqueous solution of the sodium salt of o-cresol (NaC,H o) is 11.45. Calcula...
The pH at 25 °C of an aqueous solution of the sodium salt of o-cresol (NaC,H o) is 11.45. Calculate the concentration of CH O in this solution, in moles per liter. Ka for HGH-О is equal to 6.310-11 Submit Answer 3 question attempts remaining
The pH at 25 °C of an aqueous solution of the sodium salt of o-cresol (NaC,H o) is 11.45. Calculate the concentration of CH O in this solution, in moles per liter. Ka for HGH-О...
need help with 7 and 8. also did I do number nine right? • Write the...
need help with 7 and 8. also did I do number nine right?
• Write the ionization cautions for the dissociation of the diprotic acid, H,C,04. called oxalic acid. The following dissociation consta owing dissociation constants were located on a scrap piece of paper near the bottle of oxalic acid in the chemical room: 6.40 X 10 and 5.91 X 102. Assign cach equation you have written one of these values and explain your reasoning. H₂C₂O4 8. Given the K,...
EQUL 499- Det. Of pH of Strong Acid, weak acid, salt, and buffer solution Discussion Topics...
EQUL 499- Det. Of pH of Strong Acid, weak acid, salt, and buffer solution Discussion Topics Discussion Topics (need to submit in Blackboard): 1. What is a buffer? • A buffer is a solution that, when introduced to a new environment, undergoes minimal pH change, typically when adding acidic or basic solutions. These are extremely important for life because the pH of human blood is delicate and even if it is changed by 0.1, there may be catastrophic effects. 2....
I need help! 68 14.7 Polyprotic Acids in acid (H,PO 14.7 CN- -.15 c. NaCN K...
I need help!
68 14.7 Polyprotic Acids in acid (H,PO 14.7 CN- -.15 c. NaCN K for HCN is 6.2 X 10-10 d. (CH3)2NHCI Kb for (CH3)3N is 5.3 X 105 e. (CH3)2NHCN f. Cu(CIO4)2 10. In aqueous solution, ammonia reacts according to the following INT 9. Consider an aqueous solution of each o neutral, acidic, or basic. If the solutions are acidic or basi -HOL an aqueous solution of each of the following salts. For each salt, state whether...
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...
Use the table of K, and K, values to calculate the theoretical pH of each salt solution. For full...
Use the table of K, and K, values to calculate the theoretical pH of each salt solution. For full credit, write the net ionic equation for the hydrolysis reaction. 0.10 M Na,PO, 2. 0.10 M Na,CO 0.10 M NH, 0.10 M AI(NO), 69 Laboratory 6 | Buffers and Salt Hydrolysis: Data and Calculations
Use the table of K, and K, values to calculate the theoretical pH of each salt solution. For full credit, write the net ionic equation for the...
Fill in the blanks and please show all work for Calculated Ka or Kb column and...
Fill in the blanks and please show all work for Calculated Ka
or Kb column and explain how to find which ion is hydrolyzed
?
Part 1: pH of Solutions of Salts: In this part you will measure the pH values for 0.1 M solutions of the following solutes. Sodium bicarbonate o M Copper(II) sulfate oOM Iron(III) nitrate 010M Sodium acetate O-10M Ammonium chloride O Ib M Sodium fluoride o10 M Methylammonium chloride o.o M For each solution, place the...
Consider a solution prepared by dissolving 3.30g of barium hypochlorite salt in 0.660 L of water...
Consider a solution prepared by dissolving 3.30g of barium hypochlorite salt in 0.660 L of water at 25 degrees C. (Assume solubility of the salt in water). Ka = 3.0x10^-8 1) Write and balance the reaction according to which the salt dissociates in water. Make sure to include correct phases. 2) Briefly explain which ions (Ba2+ or ClO- or both or maybe neither?) will hydrolyze. Write and balance any appropriate hydrolysis reaction(s). 3) The Solution is expected to be (Acidic,...
B. pH of Salt Solutions: Write net-ionic equations for the interaction of the ions in each salt with water and explain why each salt is acidic, basic, or neutral as observed by the measured pH values. pH of Salt Solutions: B. Salt Solution: NaC,H,O, NH CI Na,CO, 6.90 6.13 Measured pH HOTTA Based on your measured pH values, indicate whether the aqueous solution of the salt is acidic, basic, or neutral. Write the net-ionic equations for any hydrolysis (reaction with...
PART Ill: MEASURING PH OF VARIOUS SALT SOLUTIONS L Classify each salt as neutral, acidic or basic Provide an explanation based on measured pH and show the hydrolysis Salt NaCI ysis reaction to determine which ion hydrolyzes to Salt Type Measured pH Hydrolysis reaction NaCzH302 1.11 0.10 G.02 6.70 7.6 NaHCOs NazCO NHAC NH4C:H:02 il. Calculate Ki for NHaCl using measured pH: Assume that (NH ; 1 is equivalent to initial INH C. Ki for NH4Ch
The pH at 25 °C of an aqueous solution of the sodium salt of o-cresol (NaC,H o) is 11.45. Calculate the concentration of CH O in this solution, in moles per liter. Ka for HGH-О is equal to 6.310-11 Submit Answer 3 question attempts remaining
The pH at 25 °C of an aqueous solution of the sodium salt of o-cresol (NaC,H o) is 11.45. Calculate the concentration of CH O in this solution, in moles per liter. Ka for HGH-О...
need help with 7 and 8. also did I do number nine right?
• Write the ionization cautions for the dissociation of the diprotic acid, H,C,04. called oxalic acid. The following dissociation consta owing dissociation constants were located on a scrap piece of paper near the bottle of oxalic acid in the chemical room: 6.40 X 10 and 5.91 X 102. Assign cach equation you have written one of these values and explain your reasoning. H₂C₂O4 8. Given the K,...
EQUL 499- Det. Of pH of Strong Acid, weak acid, salt, and buffer solution Discussion Topics Discussion Topics (need to submit in Blackboard): 1. What is a buffer? • A buffer is a solution that, when introduced to a new environment, undergoes minimal pH change, typically when adding acidic or basic solutions. These are extremely important for life because the pH of human blood is delicate and even if it is changed by 0.1, there may be catastrophic effects. 2....
I need help!
68 14.7 Polyprotic Acids in acid (H,PO 14.7 CN- -.15 c. NaCN K for HCN is 6.2 X 10-10 d. (CH3)2NHCI Kb for (CH3)3N is 5.3 X 105 e. (CH3)2NHCN f. Cu(CIO4)2 10. In aqueous solution, ammonia reacts according to the following INT 9. Consider an aqueous solution of each o neutral, acidic, or basic. If the solutions are acidic or basi -HOL an aqueous solution of each of the following salts. For each salt, state whether...
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...
Use the table of K, and K, values to calculate the theoretical pH of each salt solution. For full credit, write the net ionic equation for the hydrolysis reaction. 0.10 M Na,PO, 2. 0.10 M Na,CO 0.10 M NH, 0.10 M AI(NO), 69 Laboratory 6 | Buffers and Salt Hydrolysis: Data and Calculations
Use the table of K, and K, values to calculate the theoretical pH of each salt solution. For full credit, write the net ionic equation for the...
Fill in the blanks and please show all work for Calculated Ka
or Kb column and explain how to find which ion is hydrolyzed
?
Part 1: pH of Solutions of Salts: In this part you will measure the pH values for 0.1 M solutions of the following solutes. Sodium bicarbonate o M Copper(II) sulfate oOM Iron(III) nitrate 010M Sodium acetate O-10M Ammonium chloride O Ib M Sodium fluoride o10 M Methylammonium chloride o.o M For each solution, place the...
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