Explanation:
done.....................
Answer:
mmoles of potassium ion = 75.264 mmoles
mmoles of dichromate ion = 37.632 mmoles
Explanation:
Considering:-
For :
Molarity = 0.0840 M
Volume = 448 mL
The mmoles of are;-
In 1 mmole of , 2 mmoles of potassium ion and 1 mmole of dichromate ion is present.
In 37.632 mmole of , 2*37.632 mmoles of potassium ion and 1*37.632 mmole of dichromate ion is present.
<u>mmoles of potassium ion = 75.264 mmoles</u>
<u>mmoles of dichromate ion = 37.632 mmoles</u>
Radioactive decay occurs when an unstable nucleus loses energy
So the answer is the second choice