Strong base is dissolved in 595 mL of 0.400 M weak acid ( Ka = 3.73 x 10^-5 ) to make a buffer with a pH of 4.10. Assume that the volume remains constant when the base is added.
1. When the reaction is complete, what is the concentration ratio of conjugate base to acid?2. How many moles of strong base were initially added?

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.

it is the most commonly accepted one

i think it's c. if you look search electronic symbol on google and then click on wiki it shows you a