Answer:
plastics, Styrofoam, paper, rubber, glass and dry air.
Explanation:
8,766 hours is your answer :)
molaity= moles/L
molarity= 5.0 moles/ 10 L
molarity= 0.5
[H+] for HClO(this is a weak acid so it requires an I.C.E. table to solve):
(I=initial amount. C=change in amount. E= amount at equilibrium.)
I.C.E. table
HClO. H2O. >>> H3O+ ClO4-
I. 0.100M. N/A. 0. 0
C. -x. N/A. +x. +x
E. 0.1-x. N/A. x. x.
(we don't consider water because it is not an aqueous solution)
ka=(x^2)/(0.1-x)
(2.9×10^-8)= (x^2)/(0.1-x)
(0.1-x)(2.9×10^-8) = x^2
(3.0×10^-9) - ((2.9×10^-8)x) = x^2
x^2+(2.9×10^-8)x-(3×10^-9)
a=1
b=(2.9×10^-8)
c= -(3×10^-9)
plug those values into the quadratic formula:
x= (-b +(√((b^2)-4ac))))/2a
I got x= 0.000053837
x= [H+] =0.000053837
[H+] for 0.100 M HClO4:
because HClO4 is a strong acid, it dissociates completely. Meaning that it's [H+] =0.1
