Please help with 1, 2, 3, 4 & 5
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Homework Answers
Correct answer for question 1 is..1st.
Question 6 (5 points) Of the following solutions, which has the greatest buffering capacity? O 0.121...
Question 6 (5 points) Of the following solutions, which has the greatest buffering capacity? O 0.121 M HF and 0.667 M NaF O 0.821 M HF and 0.909 M NaF 0.100 M HF and 0.217 M NaF They are all buffer solutions and would all have the same capacity.
11. Which has the greatest buffering capacity? Explain your answer. (3 points) A) 0.821 MHF and...
11. Which has the greatest buffering capacity? Explain your answer. (3 points) A) 0.821 MHF and 0.909 M NaF C) 0.121 M HF and 0.667 M NaF B) 0.100 M HF and 0.217 M NaF D) 0.821 M HF and 0.217 M NaF E) They are all buffer solutions and would all have the same capacity 12. Calculate the pH of a solution prepared by dissolving 0.423 mol of formic acid (HCOOH) and 0.325 mol of sodium formate (HCOONa) in...
9) Which one of the following pairs cannot be mixed together to form a buffer solutions...
9) Which one of the following pairs cannot be mixed together to form a buffer solutions A) KOH, HNO2 B) H2S03. KHSO3 C) HONH2, HONH3CI D) NaCI, HCI E) RbOH, HF 10) The Henderson-Hasselbalch equation is acid) acid] A) pH- pKa log basel base] D) pH - pKaobase [acid 11) HA is a weak acid. Which equilibrium corresponds to the equilibrium constant Kp for A- A) A (aq) H30+ (aq) HA (aq) H20 0) B) HA (aq) + OH-(aq) 근...
all please, no mid way answers because then i dont get the help necessary. Name 2)...
all
please, no mid way answers because then i dont get the help
necessary.
Name 2) Nitrogen dioxide gas reacts with water to form nitric acid and nitrogen monoxide gas a) Write a balanced chemical equation for the reaction. b) If 5.Og nitrogen dioxide completed reacted, how many grams of nitric acid would form? c) If 5.0g water completed reacted, how many grams of nitric acid would form? d) What is the limited reagent? nitrogen dioxide, NO2 e) If 5.0g...
Stoichiometry Wor PAGE B) 1Na2SIOs (s)+ 8 HF(aq)H2SiF6 (aq)+ 2 NaF(aq)+3 H20 U) Vh.How many moles...
Please see attched.
Please only do the circle and check questions.1 a, c, 2 a, b
Stoichiometry Wor PAGE B) 1Na2SIOs (s)+ 8 HF(aq)H2SiF6 (aq)+ 2 NaF(aq)+3 H20 U) Vh.How many moles of !HIF are needed to react with 0300 mol of NasSi0,? b. How many grams of NaF form when 0.500 mol of HF reacts with excess Na Sit vć. How many grams of Na Si0, can react with 0.800 g of HF7 2. CsH120s (aq) 2 CH,OH [aq)...
1. Label the acids, bases, conjugate acids, and conjugate bases in the reactions below: a. Na2CO3(aq)...
1. Label the acids, bases, conjugate acids, and conjugate bases in the reactions below: a. Na2CO3(aq) + 2 HCl (aq) H2CO, (aq) + 2 NaCl (aq) b. NH” (aq) + CN + NH3 (aq) + HCN (aq) c. Na2HPO4 (aq) + NaOH(aq) - Na PO. (aq) + H20 (1) d. H2O(l) + NaH (s) H2(g) + NaOH(aq) 2. Calculate the pH of the following solutions: a. [H,O') = 4.5 x 10° b. 12 M HCl C. 0.13 M NaOH d....
4. Write net ionic equations for reactions a), b) and d) only in Q. 1 above. 5. a) If the followi...
4. Write net ionic equations for reactions a), b) and d) only in Q. 1 above. 5. a) If the following reactions will take place, complete and balance it. If there is no reaction, state: a) AgNO3(ag) Cu(s) b) Cu(NOs)2 (aq) + Zn(s) c) Pb(NOs)2 (aq) + H2(g) d) AI(s) + HCI(aq) b) Balance the following half reactions in acidic solutions: i) VO2+ (aq) →V" (aq) 6. Balance the following reactions in basic solutions: a) Mno,(aq) + SO, (aq) MnO...
1) The net ionic equation for the reaction between aqueous nitric acid and aqueous sodium hydroxide...
1) The net ionic equation for the reaction between aqueous nitric acid and aqueous sodium hydroxide is A) H+ (aq) + HNO3 (aq) + 2OH- (aq) → 2H20 (1) + NO3- (aq) B) HNO3 (aq) + NaOH(aq) → NaNO3(aq) + H20 (1) C) H+ (aq) + OH- (aq) + H2O (1) D) HNO3 (aq) + OH- (aq) + NO3- (aq) + H2O (1) E) H+ (aq) + Na+ (aq) + OH- (aq) → H20 (1) + Na+ (aq) 2) Which...
Classify HF as a strong or weak acid or base in aqueous solution. Weak base O...
Classify HF as a strong or weak acid or base in aqueous solution. Weak base O Weak acid O Strong acid Strong base Which of the following is the correct molecular equation for the following reaction? HC2H302 (aq) Ba(OH)2 (aq) O 2 H (aq) + Ba(ОН)2 (s) +2 H20 ) +2 C2H302 (aq) +2 C2H302 Ba2+ (aq) (aq) Ba2+ (aq) 2 OH O 2 H(aq)+2 C2H302 (aq) Ba2 (aq) +2 C2H3O2 (aq)+ 2 H20 (aq) (1) +Ba(OH)2 (aq) O 2...
. For the reaction: Hz (g) + 12(g) → 2 HI(g), Kc= 12.3 at a certain...
. For the reaction: Hz (g) + 12(g) → 2 HI(g), Kc= 12.3 at a certain temperature. If at a given moment in the reaction at that temperature, [Hz] = [12] = [HI] = 3.21 x 10-*M, which direction will the reaction proceed to reach equilibrium? -. For the following reactions, label the acid, base, conjugate acid, and conjugate base: a. H2SO4 (ag) + H20 (ag) → HSO. (ag) + H30* (ag) b. HNO3 (ag) + OH- (aq) → NO3-...
Question 6 (5 points) Of the following solutions, which has the greatest buffering capacity? O 0.121 M HF and 0.667 M NaF O 0.821 M HF and 0.909 M NaF 0.100 M HF and 0.217 M NaF They are all buffer solutions and would all have the same capacity.
11. Which has the greatest buffering capacity? Explain your answer. (3 points) A) 0.821 MHF and 0.909 M NaF C) 0.121 M HF and 0.667 M NaF B) 0.100 M HF and 0.217 M NaF D) 0.821 M HF and 0.217 M NaF E) They are all buffer solutions and would all have the same capacity 12. Calculate the pH of a solution prepared by dissolving 0.423 mol of formic acid (HCOOH) and 0.325 mol of sodium formate (HCOONa) in...
9) Which one of the following pairs cannot be mixed together to form a buffer solutions A) KOH, HNO2 B) H2S03. KHSO3 C) HONH2, HONH3CI D) NaCI, HCI E) RbOH, HF 10) The Henderson-Hasselbalch equation is acid) acid] A) pH- pKa log basel base] D) pH - pKaobase [acid 11) HA is a weak acid. Which equilibrium corresponds to the equilibrium constant Kp for A- A) A (aq) H30+ (aq) HA (aq) H20 0) B) HA (aq) + OH-(aq) 근...
all
please, no mid way answers because then i dont get the help
necessary.
Name 2) Nitrogen dioxide gas reacts with water to form nitric acid and nitrogen monoxide gas a) Write a balanced chemical equation for the reaction. b) If 5.Og nitrogen dioxide completed reacted, how many grams of nitric acid would form? c) If 5.0g water completed reacted, how many grams of nitric acid would form? d) What is the limited reagent? nitrogen dioxide, NO2 e) If 5.0g...
Please see attched.
Please only do the circle and check questions.1 a, c, 2 a, b
Stoichiometry Wor PAGE B) 1Na2SIOs (s)+ 8 HF(aq)H2SiF6 (aq)+ 2 NaF(aq)+3 H20 U) Vh.How many moles of !HIF are needed to react with 0300 mol of NasSi0,? b. How many grams of NaF form when 0.500 mol of HF reacts with excess Na Sit vć. How many grams of Na Si0, can react with 0.800 g of HF7 2. CsH120s (aq) 2 CH,OH [aq)...
1. Label the acids, bases, conjugate acids, and conjugate bases in the reactions below: a. Na2CO3(aq) + 2 HCl (aq) H2CO, (aq) + 2 NaCl (aq) b. NH” (aq) + CN + NH3 (aq) + HCN (aq) c. Na2HPO4 (aq) + NaOH(aq) - Na PO. (aq) + H20 (1) d. H2O(l) + NaH (s) H2(g) + NaOH(aq) 2. Calculate the pH of the following solutions: a. [H,O') = 4.5 x 10° b. 12 M HCl C. 0.13 M NaOH d....
4. Write net ionic equations for reactions a), b) and d) only in Q. 1 above. 5. a) If the following reactions will take place, complete and balance it. If there is no reaction, state: a) AgNO3(ag) Cu(s) b) Cu(NOs)2 (aq) + Zn(s) c) Pb(NOs)2 (aq) + H2(g) d) AI(s) + HCI(aq) b) Balance the following half reactions in acidic solutions: i) VO2+ (aq) →V" (aq) 6. Balance the following reactions in basic solutions: a) Mno,(aq) + SO, (aq) MnO...
1) The net ionic equation for the reaction between aqueous nitric acid and aqueous sodium hydroxide is A) H+ (aq) + HNO3 (aq) + 2OH- (aq) → 2H20 (1) + NO3- (aq) B) HNO3 (aq) + NaOH(aq) → NaNO3(aq) + H20 (1) C) H+ (aq) + OH- (aq) + H2O (1) D) HNO3 (aq) + OH- (aq) + NO3- (aq) + H2O (1) E) H+ (aq) + Na+ (aq) + OH- (aq) → H20 (1) + Na+ (aq) 2) Which...
Classify HF as a strong or weak acid or base in aqueous solution. Weak base O Weak acid O Strong acid Strong base Which of the following is the correct molecular equation for the following reaction? HC2H302 (aq) Ba(OH)2 (aq) O 2 H (aq) + Ba(ОН)2 (s) +2 H20 ) +2 C2H302 (aq) +2 C2H302 Ba2+ (aq) (aq) Ba2+ (aq) 2 OH O 2 H(aq)+2 C2H302 (aq) Ba2 (aq) +2 C2H3O2 (aq)+ 2 H20 (aq) (1) +Ba(OH)2 (aq) O 2...
. For the reaction: Hz (g) + 12(g) → 2 HI(g), Kc= 12.3 at a certain temperature. If at a given moment in the reaction at that temperature, [Hz] = [12] = [HI] = 3.21 x 10-*M, which direction will the reaction proceed to reach equilibrium? -. For the following reactions, label the acid, base, conjugate acid, and conjugate base: a. H2SO4 (ag) + H20 (ag) → HSO. (ag) + H30* (ag) b. HNO3 (ag) + OH- (aq) → NO3-...
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