The label of a fertilizer states that the fertilizer contains 18.1% p4o10 by mass. what is the mass percentage of phosphorus in the fertilizer?

The fertilizer contains 7.90 % P by mass.

Assume you have 100 g of fertilizer.

Mass of P₄O₁₀ = 100 g fertilizer × 18.1 g P₄O₁₀/100 g fertilizer = 18.1 g P₄O₁₀

M_r of P₄O₁₀ = 4 × 30.97 + 10× 16.00 = 123.88 + 160.00 = 283.88

Mass of P = 18.1 g P₄O₁₀ × (123.88 g P/283.88 g P₄O₁₀) = 7.90 g P  

Mass % P = mass/total mass × 100 % = 7.90 g /100 g × 100 % = 7.90 %

f,,u,,c,,k me daddy

the density(ratio between mass and volume as m/v) decreases from top to bottom in periodic table group as the size increases and nuclear charge decreases. but in periods density increases from left to right as atom size decreases and nuclear charge increases.