3 years ago

What is the biggest source of vitamin D

Chemistry

2 answers:

Aleksandr [31]3 years ago

5 0

The biggest source of vitamin D is the sun.

Lena [83]3 years ago

5 0

In terms of food, fish (like tuna) is one of the biggest source of vitamin D. However, the sun provides the biggest source of vitamin D.

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Propanoic acid, ch3ch2cooh, has a pka =4.9. draw the structure of the conjugate base of propanoic acid and give the ph above whi

xenn [34]

Conjugate base of Propanoic acid ( $CH_{3}CH_{2}COOH$ is propanoate where -COOH group gets converted to -CO $O^{1-}$ . The structure of conjugate base of Propanoic acid is shown in the diagram.

The $p^{H}$ above which 90% of the compound will be in this conjugate base form can be determined using Henderson's equation as propanoic acid is weak acid and it can form buffer solution on reaction with strong base.