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Yuliya22 [10]
3 years ago
8

An ecosystem consists of all of the populations of multiple species living in a particular place.

Biology
1 answer:
Korolek [52]3 years ago
4 0
Yes and it consists of abiotic factors, river, rocks, etc
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Hello,

In this case, considering that the buffer required a pH greater than 7 where the basic conditions are present, we need a weak base and its conjugate base in order to assure such pH greater than 7. Moreover, by using a strong acid, we can gently add it in order to decrease the pH up to 7.4 via a properly measured neutralization of the necessary moles of base up to a hydrogen concentration of 3.98x10⁻⁸ (pH). Therefore, answer is b) By mixing weak base with its conjugate acid and then adjusting the pH with strong  acid.

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