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3. Calculate how many moles of H are in 35.0 g of Vitamin A(C20H30O): 4. Calculate...

3. Calculate how many moles of H are in 35.0 g of Vitamin A(C20H30O):

4. Calculate how many O atoms are in 45.0 g of Vitamin A(C20H30O):

(**please explain and where the values of the formula comes from)

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