BIOCHEMISTRY
PROPERTIES OF WATER
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
Water is essential for life.Water typically has a pH of 7 and therefore is considered neutral.
|
|
hydrogen and hydronium ions.
|
|
|
hydroxide and hydronium ions.
|
|
|
hydrogen and hydroxide ions.
|
|
|
oxygen and hydrogen ions.
|
Explanation:
Detailed explanation-1: -The pH of pure water is seven. Concentration of hydroxide ion and hydrogen ion is equal in pure water making it neutral.
Detailed explanation-2: -pH is a measure of how acidic/basic water is. The range goes from 0-14, with 7 being neutral.
Detailed explanation-3: -At 100°C, the pH of pure water is 6.14, which is “neutral” on the pH scale at this higher temperature. A solution with a pH of 7 at this temperature is slightly alkaline because its pH is a bit higher than the neutral value of 6.14.
Detailed explanation-4: -The pH is minus the log (base 10) of the H+ concentration in moles per liter. Since at room temperature in pure water, that concentration is very close to 10-7 M, pH 7 is neutral.
There is 1 question to complete.