Answer:
no of moles = mass / molar mass
1 mole = 6.02 *10^23 molecules
I don't know if that helped
Answer:
Its neither the only value im getting is 864
The answer is D positive 1/2
Answer:
Step-by-step explanation:
We are given that
Mean,%=68.5/100
Standard deviation, %=8.2/100
We have to find the probability that a student who wrote the examination had a mark between 80% and 100%.
We know that
Using the formula
Answer: 52
Step-by-step explanation: PEMDAS, so you first do multiplication. 12x4 is 48. then, you divide 32/8 which is 4. Then you add them and get 52