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Maurinko [17]
2 years ago
11

Ammonia can be prepared by the reaction of magnesium nitride with water. The products are ammonia and magnesium hydroxide. Write

and balance the equation.
Chemistry
2 answers:
Vaselesa [24]2 years ago
5 0

Answer:

Mg3N2 + 6H20 → 2NH3  + 3Mg(OH)2

Explanation:

The reactant side(left side) of the equation is given as magnesium nitride and  water.

magnesium nitride  = combination of magnesium ion and nitrogen ion

Magnesium is the positive end or cation while Nitrogen is the anions or negative end

Mg2+  and  N3-

cross multiply the charges

Mg3N2 = magnesium nitride

H20 = water

Reactant = Mg3N2 + H20

Product  = NH3  + Mg(OH)2

For ammonia

N3- and H+

cross multiply the charges

NH3

For Magnesium hydroxide

Mg2+ and (OH)-

cross multiply the charges

Mg(OH)2

Combining the reactant and the product

Mg3N2 + H20 → NH3  + Mg(OH)2

Balancing the equation, we make the number of atom on the left side equal to the right side.

Mg3N2 + 6H20 → 2NH3  + 3Mg(OH)2

on the reactant side

Mg = 3

N = 2

H = 12

O = 6

On the product side

N  = 2

H = 6 + 6 = 12

Mg = 3

O = 6

deff fn [24]2 years ago
3 0

Answer:

Mg3N2 +6H2O--> 2NH3 + 3Mg (OH)2

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The rate of entropy change:

The rate of entropy change of the working fluid during the heat addition process is 3 kW/K

What is the Carnot cycle?

  • The Carnot Cycle is a thermodynamic cycle made up of reversible isothermal expansion, adiabatic expansion, isothermal compression, and adiabatic compression processes in succession.
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The entropy of a system:

The rate of heat addition is expressed as,

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The entropy of a system is a measure of how disorderly a system is getting. The rate of entropy generation during heat addition is,

S_{gen} = \frac{Q}{T_{H}} = \frac{W}{T_{H} - T_{L}}

Calculation:

<u>Given:</u>

T_{L} = 400K

T_{H} = 1600K

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Put all the values in the above equation, and we get,

S_{gen} = \frac{W}{T_{H} - T_{L}} = \frac{3600}{1600-400} = 3 kW/K

The rate of entropy change is 3 kW/K

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3 0
2 years ago
A 15.0 L tank of gas is contained at a high pressure of 8.20 x 10^4 torr. The tank is opened and the gas expands into an empty c
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Answer:

20.5torr

Explanation:

Given parameters:

V₁  = 15L

P₁  = 8.2 x 10⁴torr

V₂ = 6 x 10⁴L

Unknown:

P₂  = ?

Solution:

To solve this problem we have to apply the claims of Boyle's law.

Boyle's law is given mathematically as;

            P₁ V₁   = P₂V₂

where P₁ is the initial pressure

          V₁ is the initial volume

           P₂ is final pressure

           V₂ is final volume

   8.2 x 10⁴  x 15  = P₂  x 6 x 10⁴

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What is a number bond.
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Explanation:

number bonds are pairs of numbers that can be added together to make another number e.g. 4 + 6 = 10. They are some of the most basic and most importantparts ofmaths for children to learn

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In the Haber reaction, patented by German chemist Fritz Haber in 1908, dinitrogen gas combines with dihydrogen gas to produce ga
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The question is incomplete, complete question is :

In the Haber reaction, patented by German chemist Fritz Haber in 1908, dinitrogen gas combines with dihydrogen gas to produce gaseous ammonia. This reaction is now the first step taken to make most of the world's fertilizer. Suppose a chemical engineer studying a new catalyst for the Haber reaction finds that 348 liters per second of dinitrogen are consumed when the reaction is run at 205°C and 0.72 atm. Calculate the rate at which ammonia is being produced.

Answer:

The rate of production of ammonia is 217.08 grams per second.

Explanation:

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Volume of dinitrogen used in a second = 348 L

Temperature of the gas = T = 205°C = 205+273 K = 478 K

Pressure of the gas = P = 0.72 atm

Moles of dinitrogen = n

n=\frac{PV}{RT}=\frac{0.72 atm\times 348 L}{0.0821 atm L/mol K\times 478 K}=6.385 mol

According to reaction, 1 mole of dinitriogen gives 2 mole of ammonia.Then 6.385 moles of dinitrogen will give:

\frac{2}{1}\times 6.385 mol=12.769 mol

Mass of 12.769 moles of ammonia;

12.769 mol 17 g/mol = 217.08 g

217.08 grams of ammonia is produced per second.So, the rate of production of ammonia is 217.08 grams per second.

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Answer:

Yes

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