The pH of a substance added to a citrate buffer, y, depending on the ratio of citric acid to sodium citrate, x, can be modeled u

Question

3 years ago

13

The pH of a substance added to a citrate buffer, y, depending on the ratio of citric acid to sodium citrate, x, can be modeled u

sing the equation y = 6.4 – log x. If the pH of the substance is 6.5, what is the ratio of citric acid to sodium citrate?
xxxxA.0.79
B. 1.26
C. 5.59
D.7.20

It's A

Mathematics

2 answers:

sdas [7] · Answer 1 · 2022-06-08T02:30:59+03:00

sdas [7]3 years ago

6 0

Answer:

A. 0.79

Step-by-step explanation:

edge 2020

Charra [1.4K] · Answer 2 · 2022-06-08T01:17:51+03:00

Charra [1.4K]3 years ago

5 0

Answer:

Yes it's A. 0.79

Step-by-step explanation:

You plug in 6.5 into the y-value since it asks to find the ratio,x, if the pHis 6.5. Then you can solve using a calculator to get 0.79432, or 0.79