Problem: Which of the following solutions could be classified as a buffer?a. 0.100 M HCl and 0.100 M NH4Clb. 0.100 M HBr and 0.100 M KBrc. 0.100 M HNO2 and 0.100 M NaNO2d. 0.100 M HCl and 0.100 M NaOH 

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Which of the following solutions could be classified as a buffer?

a. 0.100 M HCl and 0.100 M NH4Cl
b. 0.100 M HBr and 0.100 M KBr
c. 0.100 M HNO2 and 0.100 M NaNO2
d. 0.100 M HCl and 0.100 M NaOH
 

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Based on our data, we think this problem is relevant for Professor Widdifield's class at OAKLAND.