A plant fertilizer contains 15% \% by mass nitrogen (N) ({\rm N}). In a container of soluble plant food, there are 14.0 oz {\rm oz} of fertilizer. How many grams of nitrogen are in the container?

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anonymous · Answer

please help

anonymous · Answer

If you have 15% by mass Nitrogen in a sample of a fertilizer, than 15% of that 14 oz sample of plant food will be Nitrogen. There are roughly 28.35 grams in an oz. This should be enough information if you think about it a little :)

anonymous · Answer

In case you didn't figure it out, the answer would be
$$14 oz*(28.35g/1oz)*(0.15)= 60g N$$