# Solving Al + BaNO3 Reactions for N2 Volume

• Chemistry
In summary, the reaction between aluminium powder and anhydrous barium nitrate is used in fireworks, producing metal oxides and nitrogen as the only products. When 0.783 g of anhydrous barium nitrate reacts with an excess of aluminium, it produces 47.145 cm^3 of nitrogen gas measured under room conditions. The correct chemical formula for barium nitrate is ##\text{Ba(NO}_3)_2##.

## Homework Statement

The reaction between aluminium powder and anhydrous barium nitrate is used as the propellant in some fireworks. The metal oxides and nitrogen are the only products. Which volume of nitrogen, measured under room conditions, is produced when 0.783 g of anhydrous barium nitrate reacts with an excess of aluminium?

## Homework Equations

8Al + 6BaNO3 ---> 4Al2O3 + 6BaO + 3N2

## The Attempt at a Solution

Mr of BaNO3= 137.3 + 14+ (16x 3)
=199.3
Moles in 0.783g = 0.783/199.3
6 moles of barium nitrate gives 3 moles of nitrogen gas
so 2 moles give 1 mole of N2 gas
so moles of N2 gas: 0.783/199.3*2
Volume= moles * 24000
= 47.145 cm^3

The chemical formula for barium nitrate is ##\text{Ba(NO}_3)_2##.

The chemical formula for barium nitrate is ##\text{Ba(NO}_3)_2##.
Ohhh, thank you!

10Al + 3Ba(NO3)2 ---> 5Al2O3 + 3 BaO + 3N2

## What is the purpose of solving Al + BaNO3 reactions for N2 volume?

The purpose of solving these reactions is to determine the volume of N2 gas that will be produced when aluminum (Al) reacts with barium nitrate (BaNO3). This information is important in understanding the stoichiometry of the reaction and can help predict the amount of product that will be formed.

## What is the balanced chemical equation for the reaction between Al and BaNO3?

The balanced chemical equation is 2Al + 3BaNO3 → 3Ba + 3N2 + 2Al2O3. This means that for every 2 moles of Al and 3 moles of BaNO3, 3 moles of N2 gas will be produced.

## How do you calculate the volume of N2 gas produced from the reaction?

The volume of N2 gas can be calculated using the ideal gas law, which states that PV = nRT. In this case, we know the pressure (P), number of moles (n), and temperature (T) of the gas. The volume (V) can be solved for using this equation.

## What factors can affect the accuracy of the calculated N2 volume?

The accuracy of the calculated N2 volume can be affected by factors such as experimental error, incomplete reactions, and impurities in the reactants. It is important to carefully measure and control these variables in order to obtain accurate results.

## How can the results of this reaction be applied in real-world scenarios?

The results of this reaction can be applied in various industrial processes that involve the production of N2 gas, such as in the production of fertilizers, plastics, and explosives. It can also be used in understanding the chemistry behind airbag deployment in cars, where N2 gas is produced by a similar reaction.

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