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cion 3 of 3 > If 1.96 grams of a certain tomato fertilizer is found to contain 5.22 grams of phosphorus as P,05, what is th

really need some help with this please! thank you!

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Answer #1

Sol.

As Mass of fertilizer = 1.96 g

Mass of P2O5 = 5.22 g  

So , Percentage by mass of P2O5 in the fertilizer

= ( Mass of P2O5 / Mass of fertilizer ) × 100

= ( 5.22 / 1.96 ) × 100

= 266 %  

Therefore , value of P in the N - P - K designation is   266  

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