A. Chloroplasts
B. The cell wall and the vacuole
C. Vacuoles
D. The mitochondrion
Answer:
pH = 4.45
Explanation:
We need to find the pH of
solution of HCl. We know that, pH of a solution is given by :
![pH=-log[H]^+](https://tex.z-dn.net/?f=pH%3D-log%5BH%5D%5E%2B)
Put all the values,
![pH=-log[3.5\times 10^{-5}]\\\\pH=4.45](https://tex.z-dn.net/?f=pH%3D-log%5B3.5%5Ctimes%2010%5E%7B-5%7D%5D%5C%5C%5C%5CpH%3D4.45)
So, the pH of the solution of HCl is 4.45.
Answer:
activation energy hope this is right
Ethanoic acid has the lowest vapour
Answer:
<h2>250 cm³</h2>
Explanation:
The volume of a substance when given the density and mass can be found by using the formula

From the question we have

Wr have the final answer as
<h3>250 cm³</h3>
Hope this helps you