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Complete the equation for the following equilibria and calculate K_eq where the K_eq expression includes [H_2O]....
Complete the equations for the following equilibria and calculate K_eq where the K_eq expression includes [H_2O]....
Complete the equations for the following equilibria and calculate K_eq where the K_eq expression includes [H_2O]. Be sure to enter K_eq in proper scientific notation. ammonia (acting as a base) reacts with water (acting as an acid) ammonia (acting as an acid) reacts with water (acting as a base) For the following generic acid-base reaction AH+B^- A^- + BH K_eq can be calculated by using the pK_a values of the acids from the forward and reverse reactions. log(K_eq) = pK_BH...
Write a balanced chemical equation (including phases) to describe the following reactions of sulfuric acid and...
Write a balanced chemical equation (including phases) to describe the following reactions of sulfuric acid and nitric acid: Nitric acid reacts with ammonia in aqueous solution. HNO_3(aq) + NH_3(aq) implies NH^+_4(aq) + NO^-_3(aq) Sulfuric acid reacts with ammonia in aqueous solution. H_2SO_4(aq) + 2 NH_3(g) implies (NH_4)_2 SO_4(aq) Sulfuric acid dissolves in water. Step 1 (1st proton): H_2SO_4(aq) + H_2O(l) implies H_3O^+(aq) + HSO^-_4(aq) Step 2 (2nd proton): HSO^-_4(aq) + H_2O(l) implies H_3O^+(aq) + SO^2-_4(aq)
23/24/25 Write the K, expression for an aqueous solution of hypochlorous acid: (Note that either the...
23/24/25
Write the K, expression for an aqueous solution of hypochlorous acid: (Note that either the numerator or denominator may contain more than one chemical species. Enter the complete numerator in the top box and the complete denominator in the bottom box. Remember to write the hydronium ion out as H2O+, and not as H) rap Write the K expression for an aqueous solution of hydrocyanic acid: (Note that either the numerator or denominator may contain more than one chemical...
Critical Skills #9 (Acid-Base Equilibria) Due: 6 pm Monday March 30 upload to Gradescope Class time:...
Critical Skills #9 (Acid-Base Equilibria) Due: 6 pm Monday March 30 upload to Gradescope Class time: 9:30 pH = 11:00 (from back of page) 2:00 1. Consider the conjugate acid-base pair NH' and NH, a. Write the acid dissociation (lonization) reaction for NHA' in water. Hint: NHU (aq) + HOS Label each conjugate acid-base pair. ? 6. Write the expression for equilibrium constant for this reaction ( ?) c. Write the base dissociation (lonization) reaction for NH, in water. Hint:...
Critical Skills 9 Acid-Base Equilibria) Due: 6 pm Monday March 30 upload to Gradescope Class time:...
Critical Skills 9 Acid-Base Equilibria) Due: 6 pm Monday March 30 upload to Gradescope Class time: 9:30 11:00 2:00 (from back of page) 1. Consider the conjugate acid-base pair NHA and NH, a. Write the acid dissociation (ionization) reaction for NHA" in water. Hint: NH."(aq) + HOME? Label each conjugate acid-base pair. b. Write the expression for equilibrium constant for this reaction ( ?) c. Write the base dissociation (Ionization) reaction for NH, in water. Hint: Nyaq) + HOS Label...
Complete the table for an aqueous solution @ 25°C each row represents one solution Грн POH...
Complete the table for an aqueous solution @ 25°C each row represents one solution Грн POH 3.25 0.25 (H) (OH) Acidic or basic 6.14x10 12.25 1.77 9.83x102 A 0.185M solution of weak acid has a pH of 2.95. Calculate the lonization constant (K) for the acid. For this you will need to determine the relationship between the [HA], and the [H01. You're given [HA] and you'll need to find [H,0+- you can get this from pH. Just as we have...
Directions: Answer each of the following questions. Be sure to use complete sentences where appropriate. For...
Directions: Answer each of the following questions. Be sure to use complete sentences where appropriate. For full credit be sure to show all of your work. Where appropriate answers should be boxed for clarity, written to the correct number of significant figures, and, include the proper units. 1. Which of the following is a chemical reaction (4 points)? a. Solid copper deposits on a piece of aluminum foil when the foil is placed in a blue copper(II) nitrate solution. The...
Titration: Acids and Bases 2. How can you determine which acid is diprotic? 3. using the...
Titration: Acids and Bases
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?
Acid Volume Base Base Initial Volume (mL) Base Final Volume (mL) Volume of Base Used (mL) Acid: Base Ratio Acid 1 20 mL Base 1 50 mL 34.5 15.5 4:3 Acid 2 20 mL Base 1 Acid 1 20 mL Base 2 Acid 2 20...
DATA AND CALCULATIONS Time at equivalence point (s) Time of color Trial *Equation for acid-base reaction...
DATA AND CALCULATIONS Time at equivalence point (s) Time of color Trial *Equation for acid-base reaction change (s) NaOH+HCI - 21 0s 1 250.5 NaOH+ HC2H3O2- 2 8l.55 99s 3 NH3+ HCl- 930s 4 NH3 + HC2H3O2- 90.55 81.Os Complete the reactions above. Attach copies of all four graphs to this report. 1. 2. Examine the time data for each of the Trials 1- -4. In which trial(s) did the indicator change color at about the same time as the...
For the following reaction, calculate how many moles of NO2 forms when 0.356 moles of the...
For the following reaction, calculate how many moles of NO2 forms when 0.356 moles of the reactant completely reacts. 2 N2O5g→4 NO2g+O2g For the following reaction, calculate how many moles of each product are formed when 0.356 moles of PbS completely react. Assume there is an excess of oxygen. 2PbSs+3O2g→2PbOs+2SO2g For the following reaction, calculate how many grams of each product are formed when 4.05 g of water is used. 2 H2O→2 H2+O2 4. Determine the theoretical yield of P2O5,...
Complete the equations for the following equilibria and calculate K_eq where the K_eq expression includes [H_2O]. Be sure to enter K_eq in proper scientific notation. ammonia (acting as a base) reacts with water (acting as an acid) ammonia (acting as an acid) reacts with water (acting as a base) For the following generic acid-base reaction AH+B^- A^- + BH K_eq can be calculated by using the pK_a values of the acids from the forward and reverse reactions. log(K_eq) = pK_BH...
Write a balanced chemical equation (including phases) to describe the following reactions of sulfuric acid and nitric acid: Nitric acid reacts with ammonia in aqueous solution. HNO_3(aq) + NH_3(aq) implies NH^+_4(aq) + NO^-_3(aq) Sulfuric acid reacts with ammonia in aqueous solution. H_2SO_4(aq) + 2 NH_3(g) implies (NH_4)_2 SO_4(aq) Sulfuric acid dissolves in water. Step 1 (1st proton): H_2SO_4(aq) + H_2O(l) implies H_3O^+(aq) + HSO^-_4(aq) Step 2 (2nd proton): HSO^-_4(aq) + H_2O(l) implies H_3O^+(aq) + SO^2-_4(aq)
23/24/25
Write the K, expression for an aqueous solution of hypochlorous acid: (Note that either the numerator or denominator may contain more than one chemical species. Enter the complete numerator in the top box and the complete denominator in the bottom box. Remember to write the hydronium ion out as H2O+, and not as H) rap Write the K expression for an aqueous solution of hydrocyanic acid: (Note that either the numerator or denominator may contain more than one chemical...
Critical Skills #9 (Acid-Base Equilibria) Due: 6 pm Monday March 30 upload to Gradescope Class time: 9:30 pH = 11:00 (from back of page) 2:00 1. Consider the conjugate acid-base pair NH' and NH, a. Write the acid dissociation (lonization) reaction for NHA' in water. Hint: NHU (aq) + HOS Label each conjugate acid-base pair. ? 6. Write the expression for equilibrium constant for this reaction ( ?) c. Write the base dissociation (lonization) reaction for NH, in water. Hint:...
Critical Skills 9 Acid-Base Equilibria) Due: 6 pm Monday March 30 upload to Gradescope Class time: 9:30 11:00 2:00 (from back of page) 1. Consider the conjugate acid-base pair NHA and NH, a. Write the acid dissociation (ionization) reaction for NHA" in water. Hint: NH."(aq) + HOME? Label each conjugate acid-base pair. b. Write the expression for equilibrium constant for this reaction ( ?) c. Write the base dissociation (Ionization) reaction for NH, in water. Hint: Nyaq) + HOS Label...
Complete the table for an aqueous solution @ 25°C each row represents one solution Грн POH 3.25 0.25 (H) (OH) Acidic or basic 6.14x10 12.25 1.77 9.83x102 A 0.185M solution of weak acid has a pH of 2.95. Calculate the lonization constant (K) for the acid. For this you will need to determine the relationship between the [HA], and the [H01. You're given [HA] and you'll need to find [H,0+- you can get this from pH. Just as we have...
Directions: Answer each of the following questions. Be sure to use complete sentences where appropriate. For full credit be sure to show all of your work. Where appropriate answers should be boxed for clarity, written to the correct number of significant figures, and, include the proper units. 1. Which of the following is a chemical reaction (4 points)? a. Solid copper deposits on a piece of aluminum foil when the foil is placed in a blue copper(II) nitrate solution. The...
Titration: Acids and Bases
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?
Acid Volume Base Base Initial Volume (mL) Base Final Volume (mL) Volume of Base Used (mL) Acid: Base Ratio Acid 1 20 mL Base 1 50 mL 34.5 15.5 4:3 Acid 2 20 mL Base 1 Acid 1 20 mL Base 2 Acid 2 20...
DATA AND CALCULATIONS Time at equivalence point (s) Time of color Trial *Equation for acid-base reaction change (s) NaOH+HCI - 21 0s 1 250.5 NaOH+ HC2H3O2- 2 8l.55 99s 3 NH3+ HCl- 930s 4 NH3 + HC2H3O2- 90.55 81.Os Complete the reactions above. Attach copies of all four graphs to this report. 1. 2. Examine the time data for each of the Trials 1- -4. In which trial(s) did the indicator change color at about the same time as the...
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