How many moles of NH3 in the supplied solution0.2 M NH3 in 2 M Nh4NO3

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In summary, to calculate the number of moles of NH3 in 2ml of a 0.2 M NH3 solution in a 2 M NH4NO3 solution, we can use the equation concentration = mol/L and the given ratio of NH3 : NH4NO3 = 1:10. After conversion, we get 0.0364 mmol as the answer.
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everscern
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Homework Statement



How many moles of NH3 are in 2ml of supplied solution: 0.2 M NH3 in 2 M Nh4NO3

Ans to be given in mmol

Homework Equations



Concentration = mol/ L

The Attempt at a Solution



Ratio of NH3 : NH4NO3 = 1: 10

2 / 11 = 0.182 ml

0.2 mol/L * 1L/ 1000ml * 0.182 ml * 1000 = 0.0364 mmol
 
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  • #2
everscern said:

Homework Statement



How many moles of NH3 are in 2ml of supplied solution: 0.2 M NH3 in 2 M Nh4NO3

Ans to be given in mmol

Homework Equations



Concentration = mol/ L

The Attempt at a Solution



Ratio of NH3 : NH4NO3 = 1: 10

2 / 11 = 0.182 ml

0.2 mol/L * 1L/ 1000ml * 0.182 ml * 1000 = 0.0364 mmol

I'm not sure why you're calculating the ratio of ammonia to ammonium salt, and then not using it? What's the 2/11 calculation for?
 

1. How do you calculate the number of moles of NH3 in a solution?

To calculate the number of moles of NH3 in a solution, you can use the formula moles = molarity x volume. In this case, the molarity is 0.2 M and the volume is the total volume of the solution, which is not provided.

2. What is the difference between NH3 and NH4NO3?

NH3 and NH4NO3 are both chemical compounds. NH3, also known as ammonia, is a gas that is commonly used in fertilizers, household cleaners, and other industrial processes. NH4NO3, also known as ammonium nitrate, is a solid compound that is also used in fertilizers but can also be used as an explosive.

3. How does the concentration of NH3 in the supplied solution affect its properties?

The concentration of NH3 in a solution can affect its properties in various ways. As the concentration increases, the solution may become more basic and have a higher pH. It may also have a stronger smell due to the presence of ammonia. Additionally, the concentration can affect the solubility of other compounds in the solution.

4. How is the concentration of NH3 in a solution typically measured?

The concentration of NH3 in a solution is typically measured using a device called a pH meter. This device measures the concentration of hydrogen ions in the solution, which can be used to determine the concentration of NH3. Other methods of measurement include titration, where a known solution is added to the solution until a reaction occurs, and spectrophotometry, where the amount of light absorbed by the solution is measured.

5. Can the concentration of NH3 in a solution change over time?

Yes, the concentration of NH3 in a solution can change over time. This can occur due to various factors such as evaporation, chemical reactions, or changes in temperature. To maintain a specific concentration, the solution may need to be stored properly and the concentration may need to be periodically checked and adjusted.

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