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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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rip856 rip856
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11 years ago
I've tried it several times on my own and I can't get the answer. Can any one help me out?

Use the Henderson-Hasselbalch equation to calculate the pH of a solution that is 17.0g  of HF and 26.5g of NaF in 125mL  of solution.
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#1
11 years ago
i'm not gonna do the math for you but there's my step by step tutorial
1) calculate the concentration of the 2 individual substance with this equation:
molar mass / volume = concentration (i'm not telling you how to calculate the molar mass, that's basics)
2) find the pKa out (of the acid not the conjugated base, you need to find out which one it is)
3) put everything in the equation
now it should work
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