A buffer solution is made with 0.45 M NH3 and 0.75 M NH4Cl. A. Does this solutio
ID: 976572 • Letter: A
Question
A buffer solution is made with 0.45 M NH3 and 0.75 M NH4Cl. A. Does this solution have a better buffer capacity against the addition of a strong acid or a strong base? Explain B. Which compound reacts with H3O+ C. Which compound reacts with OH-Will a precipitate form when 15.0 mL of 0.0020 M Na3PO4 is mixed with 25.0 mL of 0.0040 M Cd(NO3)2? The Ksp for the insoluble compound is 2.53x10^-33. A. Write a balanced net ionic equation to represent the precipitation reaction B. Write the solubility constant expression. C. Calculate IP A buffer solution is made with 0.45 M NH3 and 0.75 M NH4Cl. A. Does this solution have a better buffer capacity against the addition of a strong acid or a strong base? Explain B. Which compound reacts with H3O+ C. Which compound reacts with OH-
Will a precipitate form when 15.0 mL of 0.0020 M Na3PO4 is mixed with 25.0 mL of 0.0040 M Cd(NO3)2? The Ksp for the insoluble compound is 2.53x10^-33. A. Write a balanced net ionic equation to represent the precipitation reaction B. Write the solubility constant expression. C. Calculate IP A. Does this solution have a better buffer capacity against the addition of a strong acid or a strong base? Explain B. Which compound reacts with H3O+ C. Which compound reacts with OH-
Will a precipitate form when 15.0 mL of 0.0020 M Na3PO4 is mixed with 25.0 mL of 0.0040 M Cd(NO3)2? The Ksp for the insoluble compound is 2.53x10^-33. A. Write a balanced net ionic equation to represent the precipitation reaction B. Write the solubility constant expression. C. Calculate IP
Explanation / Answer
this is a basic buffer so
pOH = pKb + log(HB+/B)
A) Yes, it can ssustain OH- and H+ addition
B)
H+ + NH3 ---> NH4+ (buffers acid addition)
C)
NH4+ + OH- --> NH3 + H2O (buffers base addition)
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