I want to thank your team (Jeff) for finding a new writer when you were unable to reach my existing writer to revise my paper. I appreciate your professionalism and efforts. Thanks
Report (any type)/Brief report
22/09/2021
##p”H” = 11.13##
The idea here is to use the ammonium ion’s acid dissociation constant, ##K_a##, to find the value of ammonia’s base dissociation constant, ##K_b##.
The relationship between the base dissocaition constant, the acid dissociation constant, and water’s self-ionization constant, ##K_W##, is given by the equation
##K_W = K_a xx K_b##
In your case, the base dissociation constant of ammonia will be
##K_b = K_W/K_a = 10^(-14)/(5.62 * 10^(-10)) = 1.78 * 10^(-5)##
To determine the of the solution, you first need to know the ##p”OH”## of the solution, which in turn requires the cocnentration of hydroxide ions, ##”OH”^(-)##.
Ammonia will react with water to form ammonium and hydroxide ions. Use an ICE table to determine the equilibrium concentration of hydroxide ions
##”NH”_text(3(aq]) ” “+” ” “H”_2″O”_text((l]) ” “rightleftharpoons” ” “NH”_text(4(aq])^(+) ” “+” ” “OH”_text((aq])^(-)##
##color(purple)(“I”)” ” ” ” 0.1″ ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” “0” ” ” ” ” ” ” ” ” ” ” “0##
##color(purple)(“C”)” ” color(white)(x)-x” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” “(+x)” ” ” ” ” ” ” ” “(+x)##
##color(purple)(“E”)” ” color(white)(x)0.1-x” ” ” ” ” ” ” ” ” ” ” ” ” ” ” “color(white)(xx)x” ” ” ” ” ” ” ” ” “color(white)(x)x##
By definition, the base dissociation constant will be
##K_b = ([“NH”_4^(+)] * [“OH”^(-)])/([“NH”_3]) = (x * x)/(0.1 – x)##
Because the value of ##K_b## is so small, you can say that
##(0.1 – x) ~~ 0.1##
This means that you have
##K_b = x^2/0.1 = 1.78 * 10^(-5)##
##x = sqrt(0.1 * 1.78 * 10^(-5)) = 0.001334##
This means that you have
##[“OH”^(-)] = x = “0.001334 M”##
The ##p”OH”## of the solution will be
##p”OH” = -log([“OH”^(-)])##
##p”OH” = -log(0.001334) = 2.87##
The pH of the solution will thus be
##p”H” = 14 – p”OH” = 14 – 2.87 = color(green)(11.13)##
I want to thank your team (Jeff) for finding a new writer when you were unable to reach my existing writer to revise my paper. I appreciate your professionalism and efforts. Thanks
Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.
You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.
Read moreEach paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.
Read moreThanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.
Read moreYour email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.
Read moreBy sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.
Read more