Answer:
![Ka=\frac{[H^+][HCOO^-]}{[HCOOH]}](https://tex.z-dn.net/?f=Ka%3D%5Cfrac%7B%5BH%5E%2B%5D%5BHCOO%5E-%5D%7D%7B%5BHCOOH%5D%7D)
Explanation:
Hello,
In this case, the weak ionization reaction for formic acid is:
![HCOOH(aq)\rightleftharpoons H^+(aq)+HCOO^-(aq)](https://tex.z-dn.net/?f=HCOOH%28aq%29%5Crightleftharpoons%20H%5E%2B%28aq%29%2BHCOO%5E-%28aq%29)
In such a way, we simply recall the law of mass action in order to represent the weak ionization constant, Ka, for such process, by taking into account that the concentration of products is divided over the concentration of reactants as shown below:
![Ka=\frac{[H^+][HCOO^-]}{[HCOOH]}](https://tex.z-dn.net/?f=Ka%3D%5Cfrac%7B%5BH%5E%2B%5D%5BHCOO%5E-%5D%7D%7B%5BHCOOH%5D%7D)
Best regards.
What ever your demcial is move it to the left twice until there is no demcial like 9.8 move twice 980
Aluminum is a substance because it is a metal on the periodic table.It is also known to be a pure substance because it can't be broken down more than it already is. I would definitely check that answer though. XD ~JOLLY~
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The table tells us that the larger the diameter the shorter the period of rotation is