Answer:
746 moles of H2O are been produced from 373 moles of Al.
Explanation:
For every 3 moles of aluminum, you get 6 moles of H2O (double). Therefore, every 373 moles of Al, you will get double as well, that is 746 m.
Answer:
B. ![\frac{1}{M^{2} s }](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7BM%5E%7B2%7D%20s%20%7D)
Explanation:
The unit for rate is M/s while the unit for each molecule should be M. You can find the unit for k by putting the units for rate and the molecules into the equation
rate= k{X][Y]
M/s= k *
* ![M^{1}](https://tex.z-dn.net/?f=M%5E%7B1%7D)
k= (M/s) / (
)
k= ![\frac{1}{M^{2} s }](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7BM%5E%7B2%7D%20s%20%7D)
You can also use this predetermined formula to solve this problem faster: k= ![\frac{M^{1-n} }{s }](https://tex.z-dn.net/?f=%5Cfrac%7BM%5E%7B1-n%7D%20%7D%7Bs%20%7D)
Where n is the number of molecule. There are 3 molecule(2X and 1Y) so n=3, so
k= ![\frac{M^{1-n} }{s }](https://tex.z-dn.net/?f=%5Cfrac%7BM%5E%7B1-n%7D%20%7D%7Bs%20%7D)
k=
=
= ![\frac{1}{M^{2} s }](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7BM%5E%7B2%7D%20s%20%7D)