1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ostrovityanka [42]
3 years ago
9

A sample of ammonia gas was allowed to come to equilibrium at 400 K. 2NH3(g) <----> N2(g) 3H2(g) At equilibrium, it was fo

und that the concentration of H2 was 0.0484 M, the concentration of N2 was 0.0161 M, and the concentration of NH3 was 0.295 M. What was the initial concentration of ammonia
Chemistry
1 answer:
Karolina [17]3 years ago
8 0

Answer:

0.327 M

Explanation:

Step 1: Write the balanced equation

2 NH₃(g) ⇄ N₂(g) + 3H₂(g)

Step 2: Make an ICE chart

        2 NH₃(g) ⇄ N₂(g) + 3 H₂(g)

I              x             0            0

C          -2y            +y         +3y

E         x-2y             y           3y

Step 3: Find the value of y

The concentration of N₂ at equilibrium is 0.0161 M. Then,

y = 0.0161

Step 4: Find the value of x

The concentration of NH₃ at equilibrium is 0.295 M. Then,

x-2y = 0.295

x-2(0.0161) = 0.295

x = 0.327

You might be interested in
Empirical formula for compound of 2.17 mol N and 4.35 mol O
balu736 [363]

Answer:

Explanation:

ratio of  moles of N and O in molecule =

N / O = 2.17 / 4.35

1/2

empirical formula = NO₂

4 0
3 years ago
What are the reactants to burning paper and the products
posledela
<span>CO2 (carbon) is the main product that results from burning paper. The paper is the reactant When paper burns in a fire, the reactants are mostly carbon (the main substance in the paper) and oxygen (from the air).Co2 If paper is loaded with CaCO3 such as cigarette paper, CaCO3 decompose in to CaO and CO2</span>
3 0
3 years ago
What is the initial temperature (°C) of a system that has the pressure decreased by 10 times while the volume increased by 5 tim
Ede4ka [16]

Answer:

300K

Explanation:

Given pressure of the system decreased by 10 times which means P_{2} =\frac{P_{1} }{10}

Given the volume of the system increased by 5 times which means V_{2} =5\times V_{1}

Given final temperature T_{2}=150K

Let the initial temperature be T_{1}

We know that PV=nRT

As n and R are constant \frac{PV}{T}=constant

\frac{P_{1}V_{1} }{T_{1}} =\frac{P_{2}V_{2}}{T_{2}}

T_{1} =\frac{P_1V_1}{P_2V_2} T_{2}

T_{1} =2\times T_{2}

T1=300K

8 0
3 years ago
Atomic mass of nitrogen
erma4kov [3.2K]

Hello!! Your atomic mass will be found at the bottom of each element. The atomic mass of Nitrogen is 14.007. Have a great day!!

8 0
3 years ago
Why can an increase in temperature lead to more effective collisions between reactant particles and an increase in the rate of a
ankoles [38]

An an increase in temperature lead to more effective collisions between reactant particles and an increase in the rate of a chemical reaction because the number of molecules with sufficient energy to react increases. The answer is number 3.

3 0
3 years ago
Read 2 more answers
Other questions:
  • Did I get the answer correct, and could someone possibly explain?
    14·1 answer
  • What happens to a gummy bear when soaking in water?
    8·1 answer
  • If you want to test whether a rock has calcite in it you could use the ?
    5·1 answer
  • Identify the particles of an atom. positively charged, electron, proton, neutron, and negatively charged.
    14·1 answer
  • If 2 objects have the same volume of 10cm3 and object A has a mass of 2 grams and object B has a mass of 4 grams, how do their d
    8·2 answers
  • What is the mass in grams of 5.40 moles of lithium.
    7·2 answers
  • A sample of an unknown substance has a mass of 0.465 kg. If 3,000.0 J of heat is required to heat the substance from 50.0°C to 1
    12·2 answers
  • Determine the mass of hydrogen chloride needed to react completely with 12.8 g of aluminum to produce aluminum chloride and hydr
    10·1 answer
  • Need help ASAP... The diagram shows a box in the periodic table.. what is the atomic number of the element??​
    8·1 answer
  • How do interactions of the biosphere and the geosphere result in ecological succession
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!