How Do You Calculate the pH of a Diluted HNO3 Solution?

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SUMMARY

The pH of a solution created by mixing 800 mL of 0.01 M HNO3 with 700.75 mL of water can be calculated using the formula pH = -log[H+]. Since nitric acid (HNO3) is a strong acid, it dissociates completely in solution. The resulting hydrogen ion concentration must be determined before applying the logarithmic formula to find the pH value.

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hey guys, I've just started PH, just wondering if you could show me how to do this question. thanks for any help

What is the pH of a solution made by mixing 800 mL of 0.01 M HNO3 and 700.75 mL of water?
 
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Nitric acid is a strong acid - what does this mean?
pH means "negative logarithm of the hydrogen ion concentration in Molarity", at least for practical purposes - Did you yet calculate the hydrogen ion concentration in your given solution?

note: the logarithm is in 'base ten'
 
Last edited:
does that mean it dissociates completely?
 
Yes, you may safely assume it is completely dissociated.
 

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