1. Which of the following solutions would be a buffer? Select all that apply.
- a solution containing HNO2 and LiNO2
- a solution containing NH3 and NH4+
- a solution containing HCl and NaCl
- a solution containing HClO4 and NaClO4
- a solution containing HF and HCl
- a solution containing HN3 and NaN3
According to the condition given in question, A buffer solution is an aqueous solution consists of a mixture of a weak acid and its conjugate base or a weak base and its conjugate acid. It has the property that the pH of the solution changes very little when a small amount of strong acid or base is added to it.
So from the above solutions, the buffer solutions are
a solution containing HNO2 and LiNO2
reason: it is mixture of Weak acid(HNO2)and its conjugate base
(LiNO2). So it isacts as a Buffer solution .
a solution containing HN3 and NaN3
reaon: it is a mixture of weak acid and strong base
a solution containing NH3 and NH4+
Reason : NH3 and its conjugate acid,
NH4+. When HCl (strong acid) is added to this
buffer system, the extra H+ ions added to the
system are consumed by the NH3 to form
NH4+
1. Which of the following solutions would be a buffer? Select all that apply. - a...
Select all of the following solutions that would be considered to be a buffer. A solution that is 1.25 M in CH3NH2 and 0.70 M in CH3NH3Cl. A solution that is 0.22 M in HNO2 and 0.11 M in KNO2. A solution that is 0.31 M in HNO3 and 0.55 M in NaNO3. A solution that is 2.15 M in CH3COOH and 0.11 M in CH3COONa. A solution that is 0.92 M in HClO4 and 0.85 M in NaClO4. A...
Select all that apply. Which of the following solutions can act as a buffer solution? 0 KCN/HCN O Na2SONaHSO NHz/NH,NO, NaI/HI
Which of the following solutions will produce a buffer solution? 0.50 M KOH/0.50 M KCI 0.50 M HF/0.50 M HC2H302 0.50 M NH3/0.50 M KF 0.50 M HCIO4/0.50 M NaClO4 0.50 M NH3/0.50 M NH4NO3
Which of the following aqueous solutions are buffer solutions? (Select all that apply.) 0.18 M Ca(OH)2 + 0.27 M CaCl2 0.26 M NH4NO3 + 0.33 M NH3 0.13 M CH3COOH + 0.22 M CH3COONa 0.27 M HNO3 + 0.24 M NaNO3 0.34 M HCN + 0.21 M KCN
Which of the following gives a buffer solution when equal volumes of the two solutions are mixed? Check all that apply. Check all that apply. 0.10 M NH4Cl and 0.10 M NH3 0.10 M NH3 and 0.10 M HCl 0.20 M NH3 and 0.10 M HCl 0.20 M NH4Cl and 0.10 M NaOH
please correct me
a Which of the following solutions are acidic? (Select all that apply.) 0.1 M NaCH3CO2 ✓ 0.1 M NaCl 0.1 M CH3CO2H 0.1 M NHÀ 0.1 M Na2CO3 ✓ 0.1 M NHACI b Which of the following solutions are basic? (Select all that apply.) 0.1 M NaCH3CO2 ✓ 0.1 M NaCl X 0.1 M CH3 CO2H ✓ 0.1 M NH3 0.1 M Na, CO, 0.1 M NHACI Which of the following solutions is most acidie? 0.1 M...
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Which of the following could produce a buffer when added in appropriate amount to a 0.1 M solution of NH3? NH3 HCl NaOH NaCl NH4Br a. HCl only b. NH4 only c. NH4Cl or NaCl d. NH4Cl or HCl e. NaOH only
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