A plant fertilizer contains 15% by mass nitrogen (N). In a container of soluble plant food, there are 14.1 oz of fertilizer. How many grams of nitrogen are in the container?
we are given with the total mass of fertilizer which is 14.1 oz. This is equivalent to 399.73 grams. 15% of the total is the amount of nitrogen. Thus, the nitrogen amount is 59.96 grams.
