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27 November, 16:13

Which of the following solutions is a good buffer system? A solution that is 0.10 M HCN and 0.10 M NaClA solution that is 0.10 M HCN and 0.10 M LiCNA solution that is 0.10 M HNO3 and 0.10 M KNO3A solution that is 0.10 M NaOH and 0.10 M HNO3A solution that is 0.10 M NaCl and 0.10 M HCl

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  1. 27 November, 16:54
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    A solution that is 0.10 M HCN and 0.10 M LiCN

    Explanation:

    A good buffer system contains a weak acid and its salt or a weak base and its salt. In this case; A solution that is 0.10 M HCN and 0.10 M LiCN, would make a good buffer system. HCN is a weak acid, while LiCN is a salt of the weak acid, that is, CN - conjugate of the acid.
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