Use the equation below to determine the maximum number of grams of ph3 that can be formed when 8.2 g of phosphorus reacts with 4 g of hydrogen to form ph3

Given,

The mass of phosphorus is 8.2 g,

The mass of hydrogen is 4 g,

The molar mass of P₄ is 123.6 g/mol

The molar mass of H₂ is 2.016 g/mol

The molar mass of PH₃ is 33.924 g/mol

The balanced chemical reaction is:

P₄ (s) + 6H₂ (g) → 4PH₃ (g)

First, there is a need to calculate the moles of P₄ and H₂,

Moles of P₄ = mass of P₄/molar mass of P₄ = 8.2 g / 123.6 g/mol

= 0.066 moles

Moles of H₂ = mass of H₂/molar mass of H₂ = 4 g / 2.016 g/mol

= 1.98 moles

From the reaction it is concluded that:

1 mol of P₄ reacts with 6 moles of H₂

0.066 moles of P₄ reacts with 6 × 0.066 = 0.396 moles of H₂.

This signifies that H₂ is in excess amount and P₄ is in limited amount.

Now, there is a need to calculate the moles of PH₃:

As, 1 mole of P₄ reacts to give 4 moles of PH₃

So, 0.066 moles of P₄ reacts to give 4 × 0.066 = 0.264 moles of PH₃.

Now, there is a need to calculate the mass of PH₃

Mass of PH₃ = moles of PH₃ × molar mass of PH₃

Mass of PH₃ = 0.264 moles × 33.924 g/mol = 8.955 g

Therefore, the maximum number of grams of PH₃ formed is 8.955 g.

i was thinking 4.0 v hope this

if the hares very faster than they are now, and thus the lynx's hunting success rate drops because it will be harder to catch them, the rate that will change will be the pray-rate. the pray-rate will change because more hares will be able to survive, thus more individuals for reproduction, so the end result will be increasing population of hares.

the predator-rate will remain pretty much the same because there will be more than enough pray, but the hunting success rate is stagnant.