percentage yield

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#1
0.8500g of hexanone, C6H12O is converted into its 2,4-dinitrophenylhyrazone during its analysis. After isolation and purification, 2.1180g of product C12H18N404 are obtained. Calculate the percentage yield?

Anyone know how to get to the answer?
0
3 years ago
#2
1. Write out a balanced equation
2. Calculate the theoretical yield by converting the hexanone to moles and then using the ratio of hexanone to the product.
3. Divide the actual yield 2.1180g by the theoretical yield then multiply by 100
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#3
(Original post by michaela0899)
1. Write out a balanced equation
2. Calculate the theoretical yield by converting the hexanone to moles and then using the ratio of hexanone to the product.
3. Divide the actual yield 2.1180g by the theoretical yield then multiply by 100
Any idea how to balance the equation because at the other side it contains nitrogen which i have no clue where it came from?
0
3 years ago
#4
"dinitrophenylhyrazone"

This is why I took Computer Science instead.
0
3 years ago
#5
(Original post by schoolsboring)
Any idea how to balance the equation because at the other side it contains nitrogen which i have no clue where it came from?
I think the hexanone to product is at the same ratio i.e 1:1 so just convert the hexanone to moles and you have the theoretical moles of C12H18N404. Conver the theoretical moles to grams by dividing by the RFM. Then divide the actual yield (2.118g) by this then times 100
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