What happens to the pH of a buffer when a strong acid is added? O It increases greatly O It decreases greatly O It increases slightly O It decreases slightly

19. A larger buffer capacity means that:       more buffer is needed to neutralize a strong base     the buffer is less resistant to changes in pH     more buffer is needed to neutralize a strong acid     the buffer is more resistant to changes in pH

Predict the effect of increasing the ratio of weak acid to conjugate base on the pH of a buffer solution. The pH will decrease. O The pH won't change. O The pH will increase. The pH will remain equal to the pka.

Buffers in the blood are needed to O increase the pH O decrease the pH O maintain a stable pH all of these

Which solution would make an effective buffer? Solution 1: 1.0 M HCI and 1.25 M NaOH Solution 2: 1.0 M NAHCO3 and 1.0M NANO3 Solution 3: 1.0 M HC2H3O2 and 1.0 M NAC2H3O2 Solution 4: 1.0 M NH3 and 1.0 M HC2H3O2

Which of the following solutions can function as a buffer?     a solution containing CH3COOH (acetic acid) and CH3COONa   a solution containing H2CO3 and NaHCO3   a solution containing NH3 and NH4Cl   all of the above

Which of the following will produce a buffer solution when dissolved in 500 mL of water ? A. 0.50 mol HNO2 and 0.50 mol KNO2 B.0.50 mol KNO2 and 0.25 mol HCI C.0.50 mol HNO2 and 0.25 mol KOH D. 0.50 mol HCIO4 and 0.50 mol KCIO4 E. 0.50 mol NH3 and 0.50 mol HCı B, C and E A, C and E A, B and C B, C and D

What is a buffer?  Choose 2.   a solution that resists changes in pH a solution that neutralizes a basic solution a weak acid-base conjugate pair a solution that neutralizes an acidic solution a strong acid-base conjugate pair

define the buffer capacity. a) buffer capacity is the amount of acid that can be added until all of the acid is used up b) buffer capacity is the amount of base that can be added until all of the base is used up c) buffer capacity is the amount of acid that can be added until all of the base is used up d) buffer capacity is the amount of acid ir base that can be added to a buffer without destroying its effectiveness e) buffer capacity is the amount of base that can be added until all of the acid is used up

Mixing which of the following pairs will make a buffer solution? O CsF, HF O KBr, HBr O Nal, HI RbCl, HC1