jmahoney412 jmahoney412
  • 03-01-2018
  • Chemistry
contestada

How many grams of diphosphorus pentoxide result if 100.0 g of phosphorus are combined with sufficient oxygen?

Respuesta :

Dejanras
Dejanras Dejanras
  • 12-01-2018
Answer is: 230 g.
Chemical reaction: P₄ + 5O₂ → 2P₂O₅.
m(P₄) = 100 g.
M(P₄) = 4 · 31 g/mol = 124 g/mol.
n(P₄) = m(P₄) ÷ M(P₄) = 100g ÷ 124g/mol = 0,806 mol.
From reaction: n(P₄) : n(P₂O5) = 1 : 2.
n(P₂O₅) = 1,612 mol.
m(P₂O₅) = 1,612 mol · 142g/mol = 230g.
M - molar mass.
n - amount of substance.
Answer Link

Otras preguntas

What are the benefits of conducting an interview to gather details for a problem-and-solution essay? A. An interview will help identify unnecessary solutions. B
A map is an example of a(an) a. observation. b. inference. c. prediction. d. model.
What did george washington consider a grave danger to the new nation??
What is 7/20 written as a percent? A. 350% B. 35% C. 3.5% D. 0.35%
Approximately how many 49's are there in 300?
determine a loans simple interest rate to the nearest tenth of a percent. P= $140 A= $177.80 T= 3 years Can someone help me decide which formula to use?
The number of blocks has 9 in the ones place. The number in the hundreds place is one more then the number in the tens place those two numbers equal 11 how...
Identify the following sentence as declarative, interrogative, imperative, or exclamatory. We’re late!
Ann is making bread. To make a loaf of bread, he needs 10/3 cups of flour. Complete the equation and then use the drop-down menu to complete the statement below
How did segregation affect the lives of african american?