1.A compound can be an acid or base but not both. true or false 2.Although a Bro

Question

1.A compound can be an acid or base but not both. true or false

2.Although a Bronsted-Lowry acids must contain hydrogen atom, it may be a neutral molecule or contain a net positive or negative charge. true or false

3.The value of Kw=1.0 x 10^-14 all the temperature below 100C. true or false

4.A acid-base indicator phenolphthalein is colorless in acidic solution and bright pink in basic solutions. true or false

5.If the ph of blood is lower than 7.35, the blood is more acidic than normal, and the condition is called alkalosis. true or false

6.The principal buffer in blood is carbonic acid bicarbonate (H2CO3/HC3-), keeping the normal blood pH of a healthy individual in the range of 7.35 to 7.45. true or false

Explanation / Answer

1. false ( a compound can acts as both acid and base like water)

2. true ( there must be a hydrogen atom, and molecule under consideration might be neutral or charged sppecies)

3. false ( it is only true for 250 C)

4. true (for this reason it can be used for determining the end point of titration of stong acid agains strong base)

5. false ( the normal pH of blood is 7.35)

6. true

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

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