Oceanography, geology, meteorology, astronomy, and environmental science
Answer:The ratio of the concentrations of
and
when the buffer has a pH of 7.02 is 0.69
Explanation:
The dissociation constant for formic acid =
Concentration of HA= 0.5 mM
Concentration of
= 0.1 mM
pH = 6.16
First we have to calculate the value of
.
Using Henderson Hesselbach equation :
Now put all the given values in this expression, we get:
To calculate the ratio of the concentrations of
and
when the buffer has a pH of 7.02.
Using Henderson Hesselbach equation :
Thus the ratio of the concentrations of
and
when the buffer has a pH of 7.02 is 0.69
Answer: 1.9 million species
Explanation: I looked it up
Answer:
An extraneous variable is eliminated, for example, if background noise that might reduce the audibility of speech is removed as Unknown extraneous variables can be controlled by randomization.
Correct option is AUCG
Adenine base pairs up with the thymine while guanine pairs with cytosine. In RNA thymine is replaced by uracil, therefore adenine pairs up with uracil. In the given sequence TAGC, the complementary sequence would be AUCG.
So, the correct option is 'AUCG'.
Hope it helps... Pls Mark brainliest