Chem problem. Help.

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Trunks9807

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15+ Year Member
I need help with the explanation to some problem. I'm not sure if the answer key is wrong or not.

1. What is the pH of a 0.1 M NaCl solution?

I answered 7, but the key said 2 and justified as "NaCl is a neutral salt"...


2. the rate of a reaction is given as rate = k [A]^2. if B is tripled and A stayed the same, what would be the effect?

I answered it as there would be an increase in the rate by ninefold. wrong?
 
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Trunks9807 said:
I need help with the explanation to some problem. I'm not sure if the answer key is wrong or not.

1. What is the pH of a 0.1 M NaCl solution?

I answered 7, but the key said 2 and justified as "NaCl is a neutral salt"...


2. the rate of a reaction is given as rate = k [A]^2. if B is tripled and A stayed the same, what would be the effect?

I answered it as there would be an increase in the rate by ninefold. wrong?
Click to expand...


you are correct on both.

NaCl is a neutral salt and therefore the pH would be 7 - the 2 must just be a misprint.
 
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