acidic buffer is formed by weak acid and its conjugate base
basic buffer is formed by weak base and its conjugate acid
Option 1:
HF is weak acid.
NaF is its conjugate base.
So, they form acidic buffer
Option 2:
HI is strong acid.
KI is its salt.
So, they will not form buffer
Option 3:
HOCl is weak acid.
NaOCl is its conjugate base.
So, they form acidic buffer
Answer: option 1 and 3
alue 3.00 points 2 attempts left Check my work Which of the following, when added to...
alue 55 points 10 attempts left Check my work Be sure to answer all parts. Calculate the number of moles of KOH in 7.70 mL of a 0.260 M KOHl solution. mol What is the pOH of the solution at 25 C?
alue 00 points 1 attempts left Check my work Click the "draw structure" button to launch the drawing utility. Draw the alkene product of the dehydration of the following alcohol: 2-Propanol OH + H,O heat edit structure ReferenceseBook &Resources MacB alue 00 points 1 attempts left Check my work Click the "draw structure" button to launch the drawing utility. Draw the alkene product of the dehydration of the following alcohol: 2-Propanol OH + H,O heat edit structure ReferenceseBook &Resources MacB
3 attempts left Check my work Select all that apply. Which of the following salts are more soluble in acidic solution than in pure water? O Al(OH) BaF, I PbCl2 I Hg Br2 Nis o Agl
Save & Exit Submit Question 9 (of 40) alue: 00 points 2 attempts left Check my work A certain inorganic acid has a pK, of 5.5. What is its K,? Enter your answer in scientific notation. Be sure to round your answer to the correct number of significant figures. x 10 (select) к, References eBook & Resources
Question 10 (of 15) alue: 00 points 3 attempts left Check work my Enter your answer in the provided box. A buffer solution is prepared in such a way that the concentration of propanoic acid is 1.92 x 10 Mand the concentration of sodium propanoate is 1.51 x 10 M. If the buffer equilibrium is described by C2HCOOH(aq) + H,O) H0 (aq) + C2H2COO (aq) propanoic acid propanoate ion with K, 1.34 x 10, calculate the pH of the solution....
attempts left Check my work Which of the hydrocarbons in the following group are isomers? Select all that apply. pdf Silverlight (1).dmg Silverlight.dmg Silverl JAN
Please answer all questions. The answer to question #2 is incorrect. 2 1 attempts left Check my work Which of the following amines can be used to resolve a racemic mixture of amino acids? Select all that apply. 0.5 points NH2 HIH eBook Ho Print NH2 References Be sure to answer all parts. The structure of the amino acid sequence Gly-His-Leu is shown below. Select the letters that correspond to the N-terminal(s), the C-terminal(s), and amide bond(s). (CH3)2CHCH2 0.5 points...
Question 11 (of 20) alue: 5.00 points 2 attempts let Check my work Click the "draw structure" button to launch the drawing utility Draw the neutral form of the organic product formed in the following reaction. 0 [11 NH CI, NaCN [2] 140. edit structure MacBook Ai FI F2 F3 Question 11 (of 20) alue: 5.00 points 2 attempts let Check my work Click the "draw structure" button to launch the drawing utility Draw the neutral form of the organic...
1 attempts left Check my work Select all that apply. Which of the following ionic compounds are soluble? Check all that apply. o NaOH O Cus Zn(NO3)2 O Ca(OH)2 Report problem Hint
Enter text to search No results alue: 2.90 points 13 attempts left Check my w Enter your answer in the provided box. Calculate the molar solubility of AgI in 1.4 M NH3. 0.000053 Type here to search