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8. Calculate the needed amounts to do the reaction (in gram for solid & ml for

liquid) of 0.04 mole of hydrazine hydrate and 0.04 mole of ethyl acetoacetate, then
calculate the theoretical yield.
(M.Wt. of hydrazine hydrate = 50 g & = 1.032 g/ml)

(M.Wt. of ethyl acetoacetate = 132.14 g & = 1.02 g/ml)
(M.Wt. of 3-methyl-pyrazolinone = 98.11 g)

Hydrazine hydrate Ethyl acetoacetate Theoretical yield
amount (ml) amount (ml)

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9. In the previous example, if the weight of the pure dry powder 3-methyl-
pyrazolinone was 1.95 gram, calculate the %yield.
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