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
Misha Larkins [42]
3 years ago
7

How many moles of NH3 can be produced from 12.0 mol of H2 and excess N2? Express your answer numerically in moles. View Availabl

e Hint(s) nothing mol NH3m o l N H 3 Part B How many grams of NH3 can be produced from 4.04 mol of N2 and excess H2. Express your answer numerically in grams. View Available Hint(s) nothing g NH3g N H 3 Part C How many grams of H2 are needed to produce 13.02 g of NH3? Express your answer numerically in grams. View Available Hint(s) nothing g H2g H 2 Part D How many molecules (not moles) of NH3 are produced from 7.62×10−4 g of H2? Express your answer numerically as the number of molecules. View Available Hint(s) nothing moleculesm o l e c u l e s
Chemistry
1 answer:
VladimirAG [237]3 years ago
3 0

Answer:

A) 8.00 mol NH₃

B) 137 g NH₃

C) 2.30 g H₂

D) 1.53 x 10²⁰ molecules NH₃

Explanation:

Let us consider the balanced equation:

N₂(g) + 3 H₂(g) ⇄ 2 NH₃(g)

Part A

3 moles of H₂ form 2 moles of NH₃. So, for 12.0 moles of H₂:

12.0molH_{2}.\frac{2molNH_{3}}{3molH_{2}} =8.00molNH_{3}

Part B:

1 mole of N₂ forms 2 moles of NH₃. And each mole of NH₃ has a mass of 17.0 g (molar mass). So, for 4.04 moles of N₂:

4.04molN_{2}.\frac{2molNH_{3}}{1molN_{2}} .\frac{17.0gNH_{3}}{1molNH_{3}} =137gNH_{3}

Part C:

According to the <em>balanced equation</em> 6.00 g of H₂ form 34.0 g of NH₃. So, for 13.02g of NH₃:

13.02gNH_{3}.\frac{6.00gH_{2}}{34.0gNH_{3}} =2.30gH_{2}

Part D:

6.00 g of H₂ form 2 moles of NH₃. An each mole of NH₃ has 6.02 x 10²³ molecules of NH₃ (Avogadro number). So, for 7.62×10⁻⁴ g of H₂:

7.62 \times 10^{-4} gH_{2}.\frac{2molNH_{3}}{6.00gH_{2}} .\frac{6.02\times 10^{23}moleculesNH_{3}  }{1molNH_{3}}=1.53\times10^{20}moleculesNH_{3}

You might be interested in
Assignment a decomposer food chain exploration. Need help
satela [25.4K]
I just finished my assignment and this is what I got. Try to put these in your own words. (: Hope this helps.

7 0
2 years ago
Which greenhouse gas is emitted when people burn fossil fuels for energy?
Volgvan
It would be carbon dioxide because carbon dioxide makes up the vast majority of greenhouse gas .
5 0
3 years ago
Please help!
cluponka [151]
IT IS D FOCAL POINT
P.S. im in middle school not trying to brag

3 0
3 years ago
Read 2 more answers
Air is about 78.0% nitrogen molecules and 21.0% oxygen molecules. Several other gases make up the remaining 1% of air molecules.
kherson [118]

Answer:

The partial pressure of the other gases is 0.009 atm

Explanation:

Step 1: Data given

Air is about 78.0% nitrogen molecules and 21.0% oxygen molecules and 1% of other gases.

The atmospheric pressure = 0.90 atm

Step 2: Calculate mol fraction

If wehave  100  moles of air, 78 moles will be nitrogen,

21  moles will be  oxygen, and  1  mol will be other gases.

Mol fraction = 1/100 = 0.01

Step 3: Calculate the partial pressure of the other gases

Pgas = Xgas * Ptotal

⇒ Pgas = the partial pressure = ?

⇒ Xgas = the mol fraction of the gas = 0.01

⇒Ptotal = the total pressure of the pressure = 0.90 atm

Pgas = 0.01 * 0.90 atm

Pgas = 0.009 atm

The partial pressure of the other gases is 0.009 atm

4 0
3 years ago
Which choice is an example of an endothermic process?
77julia77 [94]

Answer: conversion of ice to steam

Explanation: Endothermic process is one in which energy is absorbed by the system.

Conversion of ice to steam is change of solid phase to gaseous phase, thus energy is required to break the strong inter molecular forces of attraction in solids to convert it into gaseous phase.

Conversion of steam to ice, conversion of steam to water  and conversion of water to ice releases energy and are examples of exothermic processes.

7 0
2 years ago
Other questions:
  • HYDROGEN PEROXIDE WITH CONCENTRATION OF
    5·1 answer
  • What is the molarity when 8.0 moles of solute are dissolved in 1.5 liters of solution?
    7·2 answers
  • Determine the mass of carbon iv oxide ,produced on burning 104g of ethyne​
    6·1 answer
  • Look up sodium in the Periodic Table (Na). Then, answer the following questions
    14·1 answer
  • Limiting Reactant problem
    8·1 answer
  • Activation energy Group of answer choices is only required in catabolic reactions that release energy. is not required at all wh
    12·1 answer
  • At what temperature does gas stay
    6·1 answer
  • A 3.8 g sample of sodium hydrogen carbonate is added to a solution of acetic acid weighing 10.8 g. The two substances react, rel
    6·1 answer
  • A gas has a volume of 240mL at 700mmHg pressure. What pressure is needed to reduce the volume to 80mL?
    9·1 answer
  • How many moles of Cs are contained in 3 moles of Cs3PO4?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!