What you need to do is find 1/8 of 50
you can just divide 50 by 8 to get 6.25
so now you have to find how many days it will take till there are 6.25 grams of iodine left
every 8.1 days its mass is split in half
so start splitting it in half and every time you do, you add 8.1 days
50/2 =25 8.1
25/2 =12.5 + 8.1
12.5/2= 6.25 +8.1
now you have reached 1/8 of the original amount of Iodine-131
so to find how long it took just add 8.1+8.1+8.1
(this is the same as 8.1x3)
which equals 24.3
it will take 24.3 days for Iodine 131 to decay to 1/8 of its original mass.
(good luck on the regent if thats what your studying for :)
G cancels out leaving only J.
Since there is a g in the numerator and a g in the denominator, both gs can be cancelled. This leaves the J in the numerator as the final units.
Hello There!
We will have water (H2O)
So if you drink a glass of water, you drink a glass of H2O.
Hope it helps! :)
here to help you :)
<u>Answer:</u> The number of electrons for n = 0, 1 and 2 are 2, 6 and 10 respectively.
<u>Explanation:</u>
Huckel's rule is used to determine the aromaticity in a compound. The number of delocalized
electrons are calculated by using the equation:

where,
n = 0 or any whole number
- Calculating the value of electrons for n = 0
Putting values in above equation, we get:

- Calculating the value of electrons for n = 1
Putting values in above equation, we get:

- Calculating the value of electrons for n = 2
Putting values in above equation, we get:

Hence, the number of electrons for n = 0, 1 and 2 are 2, 6 and 10 respectively.
Answer:
60.052 g/mol (molar mass of vinegar)
84.007g/mol (baking soda )