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0.6 mmol of NaCI and 1 mol of HCI in 1 L...

`0.6` mmol of NaCI and 1 mol of `HCI` in 1 L solution is a buffer.

Text Solution

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`{:(NaCN+,HCIrarr,NaCI+,HCN),(0.1,1,0,0),(0,(1-0.5)=0.5,0.5,0.5):}`
It becomes a mixture `HCN + NaCI + HCI` which is not a buffer.
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