Answer:
9.07
Explanation:
We have to start with the buffer system reaction, so:
When we have the hydrochloric acid (a <u>strong acid</u>) the of the hydrochloric acid () <u>will interact with the base</u> of the buffer system () to produce more acid (), so:
Therefore the concentration of will <u>decrease</u> and the concentration of will <u>increase</u>. The next step then would be the calculation of the moles of the acid and base in the buffer system. So:
If we add 0.02 mol of we can calculate the amount of <u>acid</u> and <u>base</u> that changes in the buffer system.
Now, we can calculate the <u>concentration of each species</u> if we divide by the number of moles:
If we use the <u>hendersson hasselbach equation</u> we can calculate the pH value again:
The final pH value is <u>9.07</u>
Answer:
4 genetically different daughter cells
Explanation:
in image
Answer:
Ar 3d3 4s2 is the electron configuration for Vanadium.
The enthalpy of the reaction is obtained as 4.876 kJ.
<h3>What is the enthalpy?</h3>
The enthalpy of a reaction is the heat that is absorbed or emitted in a reaction.
Given the reaction; N2(g) + 3H2(g) ⇔2NH3(g);
Number of moles of N2 = 6.44 grams/28 g/mol
= 0.23 moles
If 1 mole of N2 releases 21.2 kJ of energy
0.23 moles of N2 releases 0.23 moles * 21.2 kJ /1 mole
= 4.876 kJ
Learn more about enthalpy:brainly.com/question/13996238?
#SPJ1