chem

posted by .

Which of the following pairs of substances, when mixed in any proportion you wish, can be used to prepare a buffer solution?

1)NaCN and NaOH
2) HCl and NaOH
3) HCN and NaOH
4)HCl and NaCN
5) NaCN and HCN

is the answer 1 and 5??

  • chem -

    I don't believe 1 will do it.
    Yes on 5. Also 3.
    Buffers are weak acid and salt or weak base and salt.
    HCN and NaOH can prepare the salt and have HCN left over.
    NaCN is the salt HCN for the acid.

  • chem -

    I tried those and it was wrong

  • chem -

    1,3,5 will do it

  • Chem -

    1-No
    2-No
    3-Yes
    4-Yes
    5-Yes

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Chem

    Sodium cyanide NaCN is a solid which melts at 564C to give a liquid that conducts electricity, It also dissolves in water to give a conduction solution. Deduce the type of bonding that holds the compound together and why?
  2. chemistry

    Arrange the following 0.1 M solutions in order of increasing pH and state why you placed each solution in that position: NaCH3COO HCl HCN NaOH NH3 NaCN KNO3 H2SO4 NH4CL H2SO3 NaHCO3 Na3PO4 CH3COOH
  3. Chemistry (repost)

    Which of the following pairs of substances, when mixed in any proportion you wish, can be used to prepare a buffer solution?
  4. chem

    Which of the following pairs of substances, when mixed in any proportion you wish, can be used to prepare a buffer solution?
  5. chem

    Which of the following pairs of substances, when mixed in any proportion you wish, can be used to prepare a buffer solution?
  6. Chemistry

    I need help with this in order to correctly complete my other related problems. Thank you so much in advance =) Arrange the following 0.1 M solutions in order of increasing pH and state why you placed each solution in that position: …
  7. Chemistry

    I need help with this in order to correctly complete my other related problems. Thank you so much in advance =) Arrange the following 0.1 M solutions in order of increasing pH and state why you placed each solution in that position: …
  8. chemistry

    what is the pH of 0.80 M NaCN? what is the pH of 0.80 M NaCN?
  9. chemistry

    You have to prepare a pH 5.00 buffer, and you have the following 0.10M solutions available: HCOOH, HCOONa, CH3COOH, CH3COONa, HCN, and NaCN. Which solutions would you use?
  10. Chemistry (molarity) (sorta an emergency)

    I'm doing a titration lab and writing a lab report where I'm sort of stuck on how exactly to find the concentration of HCl. These are the following info I have from the lab, Equation: HCl(aq)+NaOH(aq)-> H2O(l)+NaCl(aq) -Calculated …

More Similar Questions