NURSING ANM AND GNM

NURSING EXAM QUESTIONS

BIOCHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
If the pH of a solution is 8, it is a ____
A
strong acid
B
weak base
C
strong base
D
weak acid
Explanation: 

Detailed explanation-1: -Thus, the pH value range of a weak base is 7.1 to 10 whereas a strong base is 10.1 to 14.

Detailed explanation-2: -All substances can be classified as neutral (with a pH of about 7), basic (pH greater than 7), or acidic (pH less than 7), and the pH tells us how strong or weak that substance is as well. For example a substance with pH = 8 is a very weak base, but a substance with pH = 3 is a strong acid.

Detailed explanation-3: -Solutions having pH values of 11, 12, 13 and 14 are usually considered strong bases.

Detailed explanation-4: -A weak base is less protonated, leading to a lower pH and a lower percentage protonated.

Detailed explanation-5: -Strong Base Solution: Strong bases can completely dissolve in water. Their pH value is extremely high, usually between 12 to 14.

There is 1 question to complete.