We know that
i) when pH is less than 7, then solution will be acidic
lesser the pH , higher will be acidity
ii) when pH is equal to 7 then solution will be negative
the H3O+ ion concentration of neutral solution is always 1 10-7 M
iii) when pH is greater than 7 then solution will be Basic
higher the pH indicates higher the basicity
'it means , we got
in a Basic solution , pH is greater than 7 that is pH > 7
Now we know that
pH = -log[H+]
if we take
[H+] = 1 10-7 M then pH will be 7 which is neutral
if we take
[H+] greater than 1 10-7 M, for example we will take
[H+] = 1 10-6 M which is greater than 1 10-7 M , the resulting pH = 6 which is Acidic and so on for [H+] greater than 1 10-7 M
if we take
[H+] less than 1 10-7 M , for exmple , we will take
[H+] less than 1 10-8 M which is less than 1 10-7 M , the resulting pH = 8 which is Basic and so on for [H+] less than 1 10-7 M
hence
in Basic solution [H3O+] < 1 10-7 M
so the our answer is option A)
in a Basic solution pH is > 7 and [H3O+] is < 1 10-7 M
Instructions: Determine if each solution is acidic, basic, or neutral. [H3O+] = 1 x 10-10 M; [OH-] = 1 x 10-4 M [H3O+] = 1 x 10-7 M; [OH-] = 1 x 10-7 M [H3O+] = 1 x 10-1 M; [OH-] = 1 x 10-13 M [H3O+] = 1 x 10-13 M; [OH-] = 1 x 10-1 M Instructions: Calculate [OH-] given [H3O+] in each aqueous solution and classify the solution as acidic or basic. [H3O+] = 2.6 x 10-3...
25. Which of the following statements is incorrect? a. A basic solution has a pH > 7. b. An acidic solution has [H3O+]> [OH ). C. A Lewis base acts as an electron pair acceptor. d. Water acts as both a Brønsted-Lowry acid and base. e. A strong acid dissociates completely in solution. What is the pH of a buffer prepared from 0.80 M ascorbic acid, H2C6H606, and 0.50 N sodium ascorbate, NaHC6H6O6? The Ka of ascorbic acid is 6.8...
18) Which of the following is TRUE? 18) A) A basic solution does not contain H3O+ B) An acidic solution has [H3O+]> [OH-] C) A neutral solution contains [H20] = [H3O+] D) An neutral solution does not contain any H3O+ or OH- E) None of the above are true. 19) Determine the pH of a 0.023 M HNO3 solution. 19) A) 2.49 B) 3.68 C) 1.64 D) 12.36 E) 2.30 20) Determine the pH of a 0.188 M NH3 solution...
Which of the following statements describes a basic solution? 1. [H30+]> [OH] 2. [H30]<[OH] 3. [H30'] x [OH] #1 x 10-14 4. [H3O+]/[OH] = 1 x 10-14 5. [H3O+]/[OH]=1 If the pH of a solution is 10, what is the hydronium, H ion concentration? 1. A) 1 x 10-10 M 2. B) 1 x 1010 M 3. C) 10 M 4. D) 10 M 5.E) * 1 1010 M As the pH increases the hydroxide ion concentration 1. A) goes...
Calculate the concentration of H3O for an aqueous solution with a pH of 6.20. A) 6.3 x 10-7 M E) 4.0 x 10 M 1. B) 1.6 x 10 M C) 1.0x 10-14 M D) 6.20 x 1014 M 2. The pH of a 0.010 M aqueous solution of Ca(OH)2 is A) 11.70 B) 12.00 C) 12.30 E) 1.70 D) 12.60 alution with a nH of 9.60. for an aqueous solution with a pH of 9.60. C) 1.5 x 10-5...
In an acidic solution, pH is ________ and [H3O+] is ________. = 7, 1 x 10-7 M > 7, < 1 x 10-7 M < 7, < 1 x 10-7 M < 7, > 1 x 10-7 M
QUESTION 1 A solution will be basic if: O pH > 7 O pH = 7 O pH < 7
a) Calcuate the pH of a solution with [H3O+] = 6.54 x 10-3 M b) Calcuate the pOH of a solution with [H3O+] = 8.5 x 10-9 M c) A solution has a pH = 2.420, what is the [OH-]? d) A solution has a pOH = 1.0, what is the [OH-]? e) Calcuate the pH of a solution with [OH-] = 5.9 x 10-6 M
6. Which of the following solutions is acidic [H3O+] = 7.0 x 10-7 M B)/ [H3O"] = 1.5 x 10-10 M C) [H3O+] < 7.0x10-7 M D) [H30]> 7.0 x 10'M E) 「HOT! = 1.0x10-14 M 25. The pH of tomato juice is about 4.5 Calculate the concentration of hydrogen ions in this juice A) 3 x 10-10 B) 3 x 10-5 M C) 5 x 104 M D) 4 M E) 3 x 1010 M
3a. Calculate the pH of a 7.8x10 * M HCl solution. 3b. Is this solution acidic, basic or neutral? 4a. Determine the pH of 1.3 x 10 M NaOH. 4b. Is this solution acidic, basic or neutral? 5a. A 0.1 M NaHCO3 solution has a pH of 8.400. What is the [H3O'? 5b. Is this solution acidic, basic or neutral? 6. Determine whether the following statements are true or false regarding a 0,010 M solution of the strong acid HNO3:...