Homework Answers
As we know basic solution contains pH greater than 7.0
0.5 M K3PO4 has pH greater than 7.
(B) is correct option
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O 11.3 o 2.7 9.0 Question 3 1 pts Which of the following solutions exhibits a...
Question 3 3 pts Compare 1.0 M solutions of the following and determine which one would...
Question 3 3 pts Compare 1.0 M solutions of the following and determine which one would have the highest pH (most basic). NaHCO, Na2CO3 Naci NaNO, O NaHCO, Na2CO3 O Naci NaNO
Question 8 3 pts Which of the following is not a conjugate acid/base pair? O HC2H302/C2H302"...
Question 8 3 pts Which of the following is not a conjugate acid/base pair? O HC2H302/C2H302" O NH4+/NH3 CO2/C03 OH3PO4/H2PO4 Question 9 3 pts A 1.0 M solution of NaC2H3O2 in water is expected to be: Acidic because sodium acetate undergoes hydrolysis Neutral because sodium acetate is a salt Basic because acetate ion is the conjugate base of acetic acid Acidic because it forms acetic acid Question 10 3 pts Examples of ionizing radiation would include: infrared (IR) visible light...
1. Which of the following ions will react with water in a hydrolysis reaction:? Nat, Ca2+,...
1. Which of the following ions will react with water in a hydrolysis reaction:? Nat, Ca2+, Cu²+, Zn2, F, SO3, Br? 2. What are the conjugate base and conjugate acid of H2PO4? 3. From what acid and what base were the following salts made: CaSO4, NH4Br, and BaCl2? 4. Tell whether 0.1 M solutions of the following salts would be acidic, neutral, or basic: BaCl2, CuSO4, (NH4)2SO4, ZnCl2, NaCN.
You must show your work to receive credit. pH = -log[H₂O 1.(4 pts) For each [H3O+]...
You must show your work to receive credit. pH = -log[H₂O 1.(4 pts) For each [H3O+] below, give the pH. a. 8.7 x 10-8 M b. 7.9 x 100M 17.06 18. 2. (4 pts) For each [OH-] below, give the [H3O+] a. 10.0 x 10-6 M b. 8.4 x 10-M 1x 10 9 3. (4 pts) For each pH below, give the [H30“). 10 a. 8.5 b. 2.9 ..th 0:1.0*11- Сен 10 P7 13.16 *10-9 11.26 x 10-3 4. (4...
Question 3 1 pts Consider the following chemical reaction H2SO4(aq) + H2011 - HSO4 (aq) +...
Question 3 1 pts Consider the following chemical reaction H2SO4(aq) + H2011 - HSO4 (aq) + H30* (aq) which answer choice correctly labels acid, base, conjugate acid and conjugate base? H2O*(aq) Answer H2SOdlad) H200 HSO, lad) Choice acid base conjugate base base acid conjugate base acid base conjugate acid base acid conjugate acid conjugate acid conjugate acid conjugate base conjugate base Question 7 1 pts Calculate the pH of a solution that was prepared with 1.46 g of HCl to...
Question 5 1 pts A student mixes HCl and NaCl (source of conjugate) and claims to...
Question 5 1 pts A student mixes HCl and NaCl (source of conjugate) and claims to have made a buffer. Is this claim accurate? Yes- it is a mixture of acid and conjugate base after all Yes- any acid with a conjugate can make a buffer Oo oo C No-the conjugate base is so weak it does not reach equilibrium with water Need more information Question 6 1 pts Which combination of acid and base would create a buffer? Assume...
Question 23 Compare the following 1.75M solutions: NH3, HClO4, LizN, and (NH4)2SO4 Which would have the...
Question 23 Compare the following 1.75M solutions: NH3, HClO4, LizN, and (NH4)2SO4 Which would have the lowest freezing point? OHCIO4 O NH3 O all would be the same O, (NH4)2SO4 O Li₂N
please explain why Which of the following aqueous solutions would have the highest osmotic pressure at...
please explain why
Which of the following aqueous solutions would have the highest osmotic pressure at 298 K? O 0.5 M (NH4)2SO4 O pure H20 O 1.5 M glucose (C6H1206) O 1M MgCl2 O 1M NaNO3
please help with 3 & 4 Question 3 Which of the following is a conjugate acid-base...
please help with 3 & 4
Question 3 Which of the following is a conjugate acid-base pair? O H2SO4/SO42- O HCI/OCI O H3O/OH O NH4+/NH3 O none of these Question 4 Which of the following must be true if a solution is to be considered acidic? O [H]<[OH-] O [H] > [OH) OH'] = [OH) Ок- [н'ион) two of these
D Question 6 1 pts When equal volumes of the solutions are combined, which of the...
D Question 6 1 pts When equal volumes of the solutions are combined, which of the following produces a solution with the largest buffer capacity? 10 M HNO3 and 1.0 M NaOH O 1.0 M NaF and 1.0 M NaOH O 1.0MHF and 1.0 M NaOH O2.0 M HNO3 and 2.0 M LINO3 O 1.0M HF and 1.0 M LIF 1 pts Question 7 Equal volumes of 0.50 MHBr and 0.50 M NH3 are mixed together. The resunting solution can...
Question 3 3 pts Compare 1.0 M solutions of the following and determine which one would have the highest pH (most basic). NaHCO, Na2CO3 Naci NaNO, O NaHCO, Na2CO3 O Naci NaNO
Question 8 3 pts Which of the following is not a conjugate acid/base pair? O HC2H302/C2H302" O NH4+/NH3 CO2/C03 OH3PO4/H2PO4 Question 9 3 pts A 1.0 M solution of NaC2H3O2 in water is expected to be: Acidic because sodium acetate undergoes hydrolysis Neutral because sodium acetate is a salt Basic because acetate ion is the conjugate base of acetic acid Acidic because it forms acetic acid Question 10 3 pts Examples of ionizing radiation would include: infrared (IR) visible light...
1. Which of the following ions will react with water in a hydrolysis reaction:? Nat, Ca2+, Cu²+, Zn2, F, SO3, Br? 2. What are the conjugate base and conjugate acid of H2PO4? 3. From what acid and what base were the following salts made: CaSO4, NH4Br, and BaCl2? 4. Tell whether 0.1 M solutions of the following salts would be acidic, neutral, or basic: BaCl2, CuSO4, (NH4)2SO4, ZnCl2, NaCN.
You must show your work to receive credit. pH = -log[H₂O 1.(4 pts) For each [H3O+] below, give the pH. a. 8.7 x 10-8 M b. 7.9 x 100M 17.06 18. 2. (4 pts) For each [OH-] below, give the [H3O+] a. 10.0 x 10-6 M b. 8.4 x 10-M 1x 10 9 3. (4 pts) For each pH below, give the [H30“). 10 a. 8.5 b. 2.9 ..th 0:1.0*11- Сен 10 P7 13.16 *10-9 11.26 x 10-3 4. (4...
Question 3 1 pts Consider the following chemical reaction H2SO4(aq) + H2011 - HSO4 (aq) + H30* (aq) which answer choice correctly labels acid, base, conjugate acid and conjugate base? H2O*(aq) Answer H2SOdlad) H200 HSO, lad) Choice acid base conjugate base base acid conjugate base acid base conjugate acid base acid conjugate acid conjugate acid conjugate acid conjugate base conjugate base Question 7 1 pts Calculate the pH of a solution that was prepared with 1.46 g of HCl to...
Question 5 1 pts A student mixes HCl and NaCl (source of conjugate) and claims to have made a buffer. Is this claim accurate? Yes- it is a mixture of acid and conjugate base after all Yes- any acid with a conjugate can make a buffer Oo oo C No-the conjugate base is so weak it does not reach equilibrium with water Need more information Question 6 1 pts Which combination of acid and base would create a buffer? Assume...
Question 23 Compare the following 1.75M solutions: NH3, HClO4, LizN, and (NH4)2SO4 Which would have the lowest freezing point? OHCIO4 O NH3 O all would be the same O, (NH4)2SO4 O Li₂N
please explain why
Which of the following aqueous solutions would have the highest osmotic pressure at 298 K? O 0.5 M (NH4)2SO4 O pure H20 O 1.5 M glucose (C6H1206) O 1M MgCl2 O 1M NaNO3
please help with 3 & 4
Question 3 Which of the following is a conjugate acid-base pair? O H2SO4/SO42- O HCI/OCI O H3O/OH O NH4+/NH3 O none of these Question 4 Which of the following must be true if a solution is to be considered acidic? O [H]<[OH-] O [H] > [OH) OH'] = [OH) Ок- [н'ион) two of these
D Question 6 1 pts When equal volumes of the solutions are combined, which of the following produces a solution with the largest buffer capacity? 10 M HNO3 and 1.0 M NaOH O 1.0 M NaF and 1.0 M NaOH O 1.0MHF and 1.0 M NaOH O2.0 M HNO3 and 2.0 M LINO3 O 1.0M HF and 1.0 M LIF 1 pts Question 7 Equal volumes of 0.50 MHBr and 0.50 M NH3 are mixed together. The resunting solution can...
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