What is the pH of a solution

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In summary, the conversation is about calculating the pH of a solution made by mixing 800 mL of 0.01 M HNO3 and 700.75 mL of water. The person is also wondering what it means for nitric acid to be a strong acid and if it dissociates completely. The definition of pH is also mentioned, with the note that the logarithm is in base ten. It is then confirmed that the acid can be assumed to be completely dissociated.
  • #1
geffman1
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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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  • #2
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'
 
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  • #3
does that mean it dissociates completely?
 
  • #4
Yes, you may safely assume it is completely dissociated.
 

1. What does pH stand for?

pH stands for "potential of hydrogen".

2. What is the scale for measuring pH?

The pH scale ranges from 0 to 14, with 7 being considered neutral. Solutions with a pH below 7 are considered acidic, while solutions with a pH above 7 are considered basic.

3. How is the pH of a solution determined?

The pH of a solution is determined by measuring the concentration of hydrogen ions (H+) in the solution. The more hydrogen ions present, the lower the pH will be. This is typically done using a pH meter or pH test strips.

4. What factors can affect the pH of a solution?

The pH of a solution can be affected by several factors, including the concentration of acids or bases, temperature, and the presence of other chemicals or ions that can donate or accept hydrogen ions.

5. How does pH affect the properties of a solution?

The pH of a solution can greatly affect its properties, such as its taste, color, and reactivity. For example, acidic solutions tend to have a sour taste and can corrode metals, while basic solutions often have a bitter taste and can feel slippery.

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