1. Does the pH increase, decrease or remain the same on the addition of the of...

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Chemistry

1. Does the pH increase, decrease or remain the same on theaddition of the of the following?
a.) LiF to an HF solution b.)KI to an HI solution c.)NH4Cl to anNH3 solution d.) HBr to an CH3COO-/CH3COOH (acetic acid/acetatebuffer) solution
2. Which of the following (select all thatapply) gives a buffer solution when equal volumes of thetwo solutions are mixed?
a.)
0.10 M NH₃ and 0.10 M NH₄Cl
b.)
0.10 M NH₃ and 0.10 M NaOH
c.)
0.10 M NH₄Cl and 0.10 M NaOH
d.)
0.50 M NH₄Cl and 0.25 M NOH

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4.3 Ratings (826 Votes)

1 Does the pH increase decrease or remain the same on the addition of the of the following a LiF to an HF solution pH will increase since HF is a weak acid when F is aded LiF Li F there will be addition of a conjugate base F which shift the equilibrium toward more HF and less H in solution pH increases as H decreases bKI to an HI solution No effect KI and HI remain as K I H in solution cNH4Cl to an NH3 See Answer

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a.)		0.10 M NH₃ and 0.10 M NH₄Cl
b.)		0.10 M NH₃ and 0.10 M NaOH
c.)		0.10 M NH₄Cl and 0.10 M NaOH
d.)		0.50 M NH₄Cl and 0.25 M NOH