Consider the reaction between no and cl2 to form nocl: 2no(g)+cl2(g)⇌2nocl(g) a reaction mixture at a certain temperature initially contains only [no]= 0.57 m and [cl2]= 0.66. after the reaction comes to equilibrium, the concentration of nocl is 0.27 m .

Value of the equilibrium constant is 1.5

Explanation:

Initial concentration of  = 0.57 M

Initial concentration of  = 0.66 M

Equilibrium concentration of  = 0.27 M

The given balanced equilibrium reaction is,

Initial conc.       0.57 M    0.66      0

At eqm. conc.   (0.57-2x)M (0.66-x)M   (2x)M

The expression for equilibrium constant for this reaction will be,

we are given : 2x= 0.27 M

x = 0.135 M

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

Thus the value of the equilibrium constant is 1.5

a: 45.9 meters

b: 4.29 seconds

step-by-step explanation:

a: h(t)=1/2(-9.8)(3)^2+0(3)+90

h(t)=-4.9(3)^2+90

h(t)=-44.1+90

h(t)=45.9 meters

b: 0=1/2(-9.8)(t^2)+0t+90

0=-4.9t^2+90

-90=-4.9t^2

18.37=t^2

t=4.29 seconds

in the second question, the numbers aren't exact, but they're a close approximation.

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.