An aqueous solution contains 0.30 M potassium fluoride.
One liter of this solution could be converted into a buffer by the addition of:.
(Assume that the volume remains constant as each substance is added.)
A. 0.15 mol NaOH
B. 0.30 mol HNO3
C. 0.29 mol HF
D. 0.29 mol KBr
E. 0.15 mol HNO3

Need asap question 1 minerals are organic compounds. true false question 2 what vitamin can be found in foods like oranges, grapefruits, and broccoli? a. vitamin a b. vitamin k c.vitamin c d. vitamin d question 3 what are minerals? a. chemical elements that are needed for body processes. b. organic compounds that the body needs in small amounts to function properly. c. small molecules used to build proteins. d. an organic compound that is insoluble in water and includes fats. question 4 how many types of vitamins does the human body need? a. 15 b. 11 c. 13 d. 17 question 5 vitamins are a good source of energy. true false