A mixture of 0.439 M H 2 , 0.317 M I 2 , and 0.877 M HI is enclosed in a vessel and heated to 430 °C. H 2 ( g ) + I 2 ( g ) − ⇀ ↽ − 2 HI ( g ) K c = 54.3 at 430 ∘ C Calculate the equilibrium concentrations of each gas at 430 ∘ C .

Answer : The concentration of at equilibrium is, 0.244 M, 0.122 M and 1.267 M respectively.

Explanation :

The given chemical reaction is:

Initial conc.       0.439      0.317       0.877

At eqm.          (0.439-x)    (0.317-x)  (0.877+2x)

As we are given:

The expression for equilibrium constant is:

Now put all the given values in this expression, we get:

x = 0.195 and x = 0.690

We are neglecting the value of x = 0.690 because equilibrium concentration can not be more than initial concentration.

Thus, the value of x = 0.195 M

The concentration of at equilibrium = (0.439-x) = (0.439-0.195) = 0.244 M

The concentration of at equilibrium = (0.317-x) = (0.317-0.195) = 0.122 M

The concentration of at equilibrium = (0.877+2x) = (0.877+2\times 0.195) = 1.267 M

answer: any goods being imported from another country may be subject to issued by the federal government are tariffs

explanation:  

tariffs are a tax on anything that are imported from abroad. government use them to protect and boost their local industries and the thought is that they encourage consumers to buy local instead of importing and they will hope will protect jobs and economy in the country that implements them  

you did not give any options thus this is the best answer i can give to you with this little information you have given

> they are both natural and not man made

> they can be tracked and predicted by the right tools

-love shrooms