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

• Chemistry
• everscern
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.
everscern

## 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

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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