Which of the following solutions will result in the formation of a buffer? Pleas

Question

Which of the following solutions will result in the formation of a buffer?

Please Please help....thank you in advanced

Which of the following solutions will result in the formation of a buffer? 1.0 M HCL, 1.0 M NaOH 1.0 M HCL, 0.5 M NaOH 1.0 M HF, 1.0 M NaOH 1.0 M HF, 0.5 M NaOH 1.0 M HCL, 1.0 M NH_3 1.0 M HCL, 0.5 M NH_3 1.0 M NH_3, 1.0 M NH_4CL 1.0 M HF, 1.0 M NaF Enter the numbers of all solutions that form buffers below, in numerical order. For example, if you believe 1, 3, and 7 form buffers (and none others) you would type '137' in the space below.

Explanation / Answer

in the given solutions NH3 and NH4Cl forms buffer. So answer is : 7

bffers are 2 types.

1.simple buffer ( salt of( weak acid + weak base ) )

2. Mixed buffer --- 2 types = a) w.a + salt of W.A with S.B

b) w.b + Salt of w.b with S.A

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