30) A given solution is found to contain 0.0001 mol of hydrogen ions (H*)per lit

Question

30) A given solution is found to contain 0.0001 mol of hydrogen ions (H*)per liter. W describes this solution? A) acidic: H acceptor D) basic: H+ donor B) basic: H+ acceptor C) acidic: H donor E) neutral 31) Which of the following ionizes completely in solution and is therefore a strong acid A) NaOH B) H,CO C) CH COOH D)NH 32) Assume that acid rain has lowered the pH of a particular lake to pH 5.0. What is the this lake? A) 1 x 10 mol of hydroxide ion per liter of lake water B) 1x 10mol of hydroxide ion per liter of lake water C) 5.0 M with regard to hydroxide ion concentration D) 9.0 M with regard to hydroxide ion concentration E) Both B and D are correct. 33) What would be the pH of a solution with a hydroxide ion concentration [OH] D) 10 E) 14 f hydrogeni C) tomato jui 34) Which of the following solutions has the greatest concentration o gastric juice at pH 2 B) vinegar at pH 3 )black coffee at pH 5 E) houschold bleach at pH 12 35) If the pH of a solution is decreased from 7 to 6, it means that the A) concentration of H+ has decreased to 10 times of what it was at pH 7. B) concentration of H+ has increased to 10 times what it was at pH 7 C) concentration of OH- has increased to 10 times what it was at pH 7. D) concentration of OH- has decreased 10 times what it was at pH 7. 6) Both B and D are correct. 36) Buffers are substances that help resist shifts in pH by A) releasing H+ in acidic solutions. B) releasing H+ in basic solutions. C) releasing OH- in basic solutions. combining with OH-in acidic solutions. E) combining with H+ in basic solutions.

Explanation / Answer

Question 30

Answer is C

the given solution concentration is 0.0001 mol or it can also written as 1/104 or 10-4 mol.

for that solution PH value is 4.

PH =-log[H+] concentration

=- log[ 10-4]

= 4

PH = 4 indicate the acidic PH value

the given solution is acidic and it acts as donor.

Acids are proton donors and Bases are proton acceptors

Related Questions

Navigate

• Browse (All)
• Browse 3
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.