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
Nataliya [291]
3 years ago
10

Calculate the net change in enthalpy for the formation of one mole of nitric acid from nitrogen, hydrogen and oxygen from these

reactions. round your answer to the nearest kj .
Chemistry
1 answer:
deff fn [24]3 years ago
7 0
The formation of nitric acid from nitrogen, hydrogen, and oxygen can be written as,

     N₂ + H₂ + 3O₂ --> 2HNO₃

The net enthalpy of formation of nitric acid is calculated by,
   Hrxn = Hproduct - Hreactant

Since all the reactants are in their elemental forms, the simplified equation would be,

    Hrxn = Hproduct 

Substituting,

    Hrxn = (-186.81 kJ/mol)(2 mols)

<em>Answer: -372.42 kJ</em>

You might be interested in
A 85.4 lb child has a Streptococcus infection. Amoxicillin is prescribed at a dosage of 45 mg per kg of body weight per day give
bixtya [17]

The amount of Amoxicillin dose given to the 85.4 lb child daily is determined as 1,743.3 mg.

<h3>What is the amount of Amoxicillin dose given to the child?</h3>

The amount of  Amoxicillin  dose given to the child is calculated as follows;

amount of Amoxicillin dose = weight of the child x dosage prescribed

<h3>What is the weight of the child in pounds (lb) </h3>

The weight of the child in pounds (lb) is calculated as follows;

1 lb = 0.453592 kg

85.4 lb = ?

= 85.4 x 0.453592 kg

= 38.74 kg

amount of Amoxicillin dose = 38.74 kg x 45 mg/kg

amount of Amoxicillin dose = 1,743.3 mg

Thus, the amount of Amoxicillin dose given to the 85.4 lb child daily is determined as 1,743.3 mg.

Learn more about amount of dose here: brainly.com/question/11185154

#SPJ1

The complete question is below:

A 85.4 lb child has a Streptococcus infection. Amoxicillin is prescribed at a dosage of 45 mg per kg of body weight per day given b.i.d. Calculate the daily dose of the child.

7 0
1 year ago
If a solid has a density of 4.0 g/cm^3, what volume of the solid has a mass<br> of 24 g? Show work.
Mrrafil [7]

Answer:

<h2>Volume = 6 cm³</h2>

Explanation:

Density of a substance is given by

Density =  \frac{mass}{volume}

From the question

Density = 4.0 g/cm³

mass = 24g

Substitute the values into the above formula and solve for the volume

That's

4 =  \frac{24}{v}  \\4v = 24

Divide both sides by 4

v = 6

We have the final answer as

<h3>Volume = 6 cm³</h3>

Hope this helps you

8 0
3 years ago
The neutrons of an atom have ______ charges and are located ____ the nucleus
djyliett [7]
Neutral charges and are found in the center? I'm not sure for the last answer
6 0
3 years ago
Read 2 more answers
PLZ HELP ME What are the five shared characteristics of all living things?
djverab [1.8K]

Answer:

D

Explanation:

I believe the answer is D.

5 0
3 years ago
The creation of carbon monoxide is an effect. What is one cause?
myrzilka [38]
Carbon dioxide can be the cause of burning carbon dioxide and a stove it depends on the heat of the flame in order for carbon dioxide to become carbon monoxide 

sorry hope that helps though 
5 0
3 years ago
Other questions:
  • The mechanism of chymotrypsin can be viewed as a two-step process, acylation of the enzyme active site followed by a deacylation
    14·1 answer
  • Carbon-14 has a half-life of 5720 years and this is a first order reaction. If a piece of wood has converted 75% of the carbon-1
    15·1 answer
  • A sample of gas has a volume of 2.4 L and a pressure of 1.2 atm. What would the pressure of the same gas sample be if the volume
    6·1 answer
  • water H2O is made up of different elements hydrogen and oxygen is this type of combination of mixture or a pure substance
    6·2 answers
  • Volcanoes located at subduction zones tend to release lava high in?
    11·2 answers
  • 2. Calculate the density of a rock that has a mass of 21.58 grams and causes the water in a
    5·1 answer
  • Can someone pls pls help me with these questions?!?!
    11·1 answer
  • The solubility of AgNO3 at 10° and 20°C are 170g and 222g per 100g H2O. What is the sign of change of heat of solution for AgNO3
    5·1 answer
  • How long will it take you to get to class 300 meters away if you go 0.5 m/s?​
    12·1 answer
  • If you lick boo boo and eat it, will you get sick?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!