Hi can someone please help me with this table. Thank you so much!!

Question

Calculating the pH, pOH, and ion concentrations

Direction: Fill-in the missing information in the table.

pH I [H 3 O⁺ ] I pOH I [OH - ] I ACIDIC or BASIC? I

1. ..........10.63............I................................I........................I...........................I.................................I
2. ...............................I_3.47 x 10 -9 M ...... I........................I...........................I.................................I
3. ...............................I..................................I.... 3.50 ...........I...........................I.................................I
4. ...............................I.................................I........................I. 8.53 x 10 -7 M..I.................................I
5. ...............................I_ 9.22 x 10 -8 M ..........I.......................I............................I................................I

Answer 1

Formulae used for solving above problems of pH are,

pH = - log[H^+]

pOH = - log[OH^-]

pH + pOH = 14

Thus, by using these formula we can calculate pH, pOH, conc. of hydrogen ions, concentration of hydroxyl ions and acidic/Basic behavior of solution.

If, pH < 7 then solution is acidic.

If, pH > 7 then solution is basic.

If, pH = 7 then solution is neutral.

1) pH = 10.63, [H3O^+] = 2.344 ×10^-11M, pOH = 3.37, [OH^-] = 4.266 ×10^-4M, Basic

2) pH = 8.46, [H3O^+] = 3.47×10^-9 M, pOH = 5.54, [OH^-] = 2.884×10^-6M, Basic.

3) pH = 10.50, [H3O^+] = 3.162×10^-11M, pOH = 3.50, [OH^-] = 3.162×10^-4M, Basic

4) pH = 7.93, [H3O^+] = 1.175×10^-8M, pOH = 6.07, [OH^-] = 8.53×10^-7M, Basic.

5) pH = 7.04, [H3O^+] = 9.22×10^-8 M, pOH = 6.96, [OH^-] = 1.096×10^-7M, Neutral