Complete the following table: 1.) Complete the first column. Complete the first
ID: 528862 • Letter: C
Question
Complete the following table:
1.) Complete the first column.
Complete the first column from top to bottom. Express your answers using two significant figures separated by commas.
2.)Complete the second column.
Complete the second column from top to bottom. Express your answers using two significant figures separated by commas.
3.)Complete the third column.
Complete the third column from top to bottom. Express your answers using two decimal places separated by commas.
4.)Complete the fourth column.
Complete the fourth column from top to bottom. Express your answers using two decimal places separated by commas.
5.)State whether the solution in the first row is acidic, basic, or neutral.
6.)State whether the solution in the fourth row is acidic, basic, or neutral.
[H3O+] [OH] pH pOH Acidic, Basic, or Neutral? 10.53 Neutral 4.31 1.7×1012MExplanation / Answer
a)
pH= 10.53;
pOH = 14-pH = 14-10.53 = 3.47
[OH-] = 10^-3.47 = 0.000338 M
[H3O+] = 10^-10.53 = 2.951*10^-11 M;
this is basic
b)
neutral,
pH = 7
pOH = 7
[OH-] = 10^-7 M
[H3O+] = 10^-7 M
c)
pOH = 4.31,
pH = 14-pOH = 14-4.31 = 9.69
[H+] =10^-pH = 10^-9.69 = 2.0417*10^-10
[OH-] = 10^-pOH = 10^-4.31 = 4.897*10^-5 M;
this is basic
d)
[H3O+] = 1.7*10^-12
pH = -log(H)= -log(1.7*10^-12)= 11.769
pOH = 14-pH = 14-11.769 = 2.231
[OH-] = 10^-2.231 = 0.005874 M
this is basic