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chem percentage yield/ mass question help

Screenshot_20180213-121832-compressed.png.jpeg

Ive got moles of compound D = 0.005
Where do I go on from here?
I don't understand what the markscheme did either

thanks
Original post by Lia22
Screenshot_20180213-121832-compressed.png.jpeg

Ive got moles of compound D = 0.005
Where do I go on from here?
I don't understand what the markscheme did either

thanks


your moles value corresponds to only 40% of the potential yield.

Scale your number of moles up to 100% and then work backwards to get the moles of reactant and hence mass.

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