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ale4655 [162]
2 years ago
13

If 8.6 grams of a certain fertilizer is found to contain 1.2 g of phosphorus is P205 what is the value of P in the N - P - K des

ignation
Chemistry
1 answer:
Nutka1998 [239]2 years ago
6 0

Based on the mass given, the value of P in the N - P - K designation is 32.

<h3>What is percentage mass composition of an element?</h3>

The percentage mass composition of an element is the mass percent ofbthe element in the the total mass of the compound.

Since the fertilizer contains 1.2 g of phosphorus as P2O5.

Molar mass of P2O5 = 142 g

mass percent of P in P2O5 = 2 × 31/142 = 43.6%

mass of P2O5 in 8.6 g fertilizer = 100/43.6 × 1.2 = 2.75 g

Mass percent of P2O5 = 2.75/8.6 × 100% = 32.0%

Therefore, the value of P in the N - P - K designation is 32.

Learn more about percentage mass at: brainly.com/question/26150306

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