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Dafna11 [192]
3 years ago
5

Help me please.... and Thankyou

Chemistry
1 answer:
stealth61 [152]3 years ago
6 0
The answer is B. because it starts at Conifer Seeds and ends at Northern goshawks.
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When naming bases, you add ___ to the end
dangina [55]

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hydroxide ion

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Elements riddle: Without my next door neighbor, I wouldn’t be worth 6 cents. Who am I?
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Benzoic acid, c6h5cooh, has a ka = 6.4 x 10-5. what is the concentration of h3o+ in a 0.5 m solution of benzoic acid? 3.2 x 10-5
FinnZ [79.3K]
The answer for this issue is: 
The chemical equation is: HBz + H2O <- - > H3O+ + Bz- 
Ka = 6.4X10^-5 = [H3O+][Bz-]/[HBz] 
Let x = [H3O+] = [Bz-], and [HBz] = 0.5 - x. 
Accept that x is little contrasted with 0.5 M. At that point, 
Ka = 6.4X10^-5 = x^2/0.5 
x = [H3O+] = 5.6X10^-3 M 
pH = 2.25
(x is without a doubt little contrasted with 0.5, so the presumption above was OK to make) 
3 0
3 years ago
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