What is the mole fraction of o2 in a mixture of 15.1 g of o2, 8.19 g of n2, and 2.47 g of h2?

Question

21-11-2017
Chemistry

contestada

What is the mole fraction of o2 in a mixture of 15.1 g of o2, 8.19 g of n2, and 2.47 g of h2?

Respuesta :

Otras preguntas

Sighting the top of a building, a surveyor measured the angle of elevation to be 60 degrees. The measurement is taken 200 feet from the building. Find the build

The ordered pair (0,4) is a solution of what system?

Select the word that is correctly spelled. stuning stunning

I need a 3rd grade easy sentence for the word grazing

What is the surface area of the square pyramid? A. 340 cm2 B. 280 cm2 C. 220 cm2 D. 160 cm2

The British used a practice called _____ in which they managed African colonies through local African leaders. Select the best answer from the choices provide

The nucleus includes all of the following structures except

Over time, the spoils system developed into a A. merit-based system. B.political reform movement. C.political machine system. D. civil service movement.

THE PROBABILITY THAT AMONG THE 12 OFFSPRING PEAS, NO MORE THAN 1 HAS A GREEN POD? find the probability that among the 12 offspring peas, no more than 1 has a gr

shinmin shinmin · Answer 1 · 2017-12-01T13:29:01+01:00

shinmin shinmin

01-12-2017

The solution is
(15.1 g O2) / (31.99886 g O2/mol) = 0.47189 mol O2 (8.19 g N2) / (28.01344 g N2/mol) = 0.29236 mol N2 (2.48 g H2) / (2.01588 g H2/mol) = 1.2302 mol H2
(0.47189 mol O2) + (0.29236 mol N2) + (1.2302 mol H2) = 1.99445 mol total
(0.47189 mol O2) / (1.99445 mol total) = 0.237 for O2

Answer Link