Calculate the degree of ionization and hydrogen ion concentration of 0.001 M solution acetic acid solution, Ka=1.85×10^-5.
equation :HA +H2O =H3O^+ +A^-

≈0.43

Explanation:

ka=(degree of ionization)²×(concentration)

1.85×10^-5=X²×0.001

x²=0.185

X=√0.185

=±0.43...where the negative value is refused

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.