Given :
0.00072 M solution of at .
To Find :
The concentration of and pOH .
Solution :
1 mole of gives 2 moles of ions .
So , 0.00072 M mole of gives :
Now , pOH is given by :
Hence , this is the required solution .
M (C2H6) = n × M = 4.6 × 30 = 13.8 g.
By calculating it's number of GROUP........
I am not all understood but for the school to earn money you can:
make
--a raffle
--lotto
-- yard sale
-- class photo
-- origami for sale or something
-- buffet or food sale (example all Friday ice cream sale, 2 livre ice cream)