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Nitrogen (N), phosporus(P), and potassium (K) are the main nutrients in the plant fertilizers. According to an industry convention , the numbers on the label refer to the mass % of N ,P_(2)O_(5), and K_(2)O,in that order. Calculate the N : P : K ratio of a 30 :10 : 10 fertilizer in terms of moles of each elements, and express it as x : y :1.0. (P = 31 , K = 39 ) |
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