rextongross3071 rextongross3071
  • 01-03-2018
  • Chemistry
contestada

What mass of ammonia, NH3, is necessary to react with 2.1x10^24 molecules of oxygen in the following reaction?
4NH3(g)+7O2(g)+4NO2(g)

Respuesta :

Dejanras
Dejanras Dejanras
  • 10-03-2018
Answer is: mass of ammonia is 34 grams.
Chemical reaction: 4NH₃ + 7O₂ → 4NO₂ + 6H₂O.
N(O₂) = 2,1·10²⁴.
n(O₂) = N(O₂) ÷ Na.
n(O₂) = 2,1·10²⁴ ÷ 6·10²³ 1/mol.
n(O₂) = 3,5 mol.
From chemical reaction: n(O₂) : n(NH₃) = 7 : 4.
n(NH₃) = 2 mol.
m(NH₃) = n(NH₃) · M(NH₃).
m(NH₃) = 2 mol · 17 g/mol.
m(NH₃) = 34 g.

Answer Link

Otras preguntas

35 Points + Brainest
Why are green algae placed in the protista while plants are placed in a separate kingdom?
In building your reading skills, how will vocabulary affect your reading experiences? How does vocabulary directly affect you now, as a college student? Perse
A rental car company is running two specials. Customers can pay $50 to rent a compact car for the first day plus $6 for each additional day, or they can rent th
f(x)=ax+b/2 then f^-1 (x-1) =2x-5/2 find a and b​
What are three characteristics that make life possible on Earth?
A ______ is the primary habitat in the natural world from which a pathogen comes.
A pack of soil weighs 43 lbs. Each plant pot requires just 12 lbs of soil. Calculate how many plant pots can be filled.
Developmental researchers agree that in adolescence, people begin to think abstractly. Piaget called this the __________ stage of cognitive development.
number 14 part 1 pls​