Problem: A 1.0-L buffer solution is 0.125 M in HNO2 and 0.175 M in NaNO2. Determine the concentrations of HNO2 and NaNO2 after addition of 1.6 g HCl.

FREE Expert Solution

Step 1: Determine the number of moles.

moles HNO2=1.00 L(0.125 mol HNO2L)=0.125 mol

moles NaNO2=1.00 L(0.175 mol NaNO2L)=0.175 mol

moles HCl=1.60 g HCl(1 mol HCl36.46 g HCl)=0.044 mol

Step 2: Construct an ICF Chart.

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Problem Details

A 1.0-L buffer solution is 0.125 M in HNO2 and 0.175 M in NaNO2. Determine the concentrations of HNO2 and NaNO2 after addition of 1.6 g HCl.

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