Question

A pyrotechnician mixes 280 g of black powder for a firework. Find the amount of oxygen,...

A pyrotechnician mixes 280 g of black powder for a firework. Find the amount of oxygen, carbon dioxide, and sulfur dioxide generated when this firework bursts, if the oxidizing agent in the powder is saltpeter. Also give which are the limiting reactants for each reaction.

Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Gunpowder, also known as black powder, is the earliest known chemical explosive. It is a mixture of sulfur, charcoal, and potassium nitrate (saltpeter). The sulfur and charcoal act as fuels, and the saltpeter is an oxidizer.

Potassium nitrate is the most important ingredient in terms of both bulk and function because the combustion process releases oxygen from the potassium nitrate. It is the limiting factor.

S + 3C + 2KNO3 3CO2 +N2 +K2S

68 g of gun powder ......3x44 g of CO2 S atomic weight 32

280................................?

3x44x280/68 C atomic weight 12

Ans: 543 g of CO2 liberates.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The basic formulation has not changed since then: 40% potassium nitrate, 30% carbon, and 30% sulfur...
The basic formulation has not changed since then: 40% potassium nitrate, 30% carbon, and 30% sulfur by weight. The products of the reaction that provide the explosive force when the powder is ignited are three gases: carbon monoxide, carbon dioxide, and nitrogen. An additional product is potassium sulfite. Consider a sample of 100g of black powder. a. Which reagent is limiting? B. How much of each of the reagents in excess is left over after the explosion takes place?
The system consists of reactants (10.5 g of butane gas and the stoichiometric amount of oxygen...
The system consists of reactants (10.5 g of butane gas and the stoichiometric amount of oxygen gas) placed in a diathermic cylinder sealed from the surroundings by a diathermic, freely moving, massless piston. The cylinder is placed in a huge water tank at 300.K. In the initial state, the system is in equilibrium with the surroundings at 300.K and 1.0 atm. As a result of the combustion between the reactants, the system reaches a final state that contains only carbon...
Carbon, hydrogen, and oxygen are not the only elements that can be characterized by combustion analysis....
Carbon, hydrogen, and oxygen are not the only elements that can be characterized by combustion analysis. If a compound also contains sulfur or nitrogen, then it will form CO​2​​ (from the carbon), H2​​O (from the hydrogen), N2​​ (from any nitrogen), and SO​2​​ (from any sulfur). The amount of oxygen in the original sample is determined from subtracting the masses of the other elements from the total, as in the combustion analysis described earlier. If a 0.500 g sample of a...
34.76 g of methane reacts in a container with 23.4 g of oxygen and 12.3 g...
34.76 g of methane reacts in a container with 23.4 g of oxygen and 12.3 g of carbon dioxide are produced. Which reactant is limiting? What is the theoretical yield of carbon dioxide? What is the percent yield of carbon dioxide?                        CH4 + O2 ⟶CO2 + H2O Identify the strongest intermolecular force present in each of the species: a.) CH4       b.) HF          c.) H                         d.) CHCl3 List ALL of the intermolecular forces present in...
Liquid ethanol is burned with 20% excess amount of air (21% oxygen and 79% nitrogen). The...
Liquid ethanol is burned with 20% excess amount of air (21% oxygen and 79% nitrogen). The feed ethanol (liquid) and air are at 50oC and the products of carbon dioxide and water are in gas state. Find the potential maximum temperature (T (K)) of the existing stream, which includes the products and the unreacted oxygen and nitrogen. The pressure of the feed and the existing stream is one atmosphere.                                     C2H5OH (l)     +    3O2 (g) -------à     2CO2 (g)       +     3...
Mass of the organisms used in the videos: Mass of the crickets: 48 g Mass of...
Mass of the organisms used in the videos: Mass of the crickets: 48 g Mass of the mouse: 16 g Mass of the peas: 264 g Mass of the rat: 129 g Volume of the container: 32,000 mL (32 L) Amal and Andraya, two biology students, have to develop a method to compare the respiration rates of different organisms. Amal suggests making a graph of time and the carbon dioxide or oxygen levels of an organism to find respiration rate....
1. Consider a situation in which 136 g of P4 are exposed to 144 g of...
1. Consider a situation in which 136 g of P4 are exposed to 144 g of O2. Part A What is the maximum amount in moles of P2O5 that can theoretically be made from 136 g of P4 and excess oxygen? Express your answer to three significant figures and include the appropriate units. Part B What is the maximum amount in moles of P2O5 that can theoretically be made from 144 g of O2 and excess phosphorus? Express your answer...
1. Given the following reaction     2C2H6(l)   +      7 O2(g)   ®           4CO2(g)      +     
1. Given the following reaction     2C2H6(l)   +      7 O2(g)   ®           4CO2(g)      +        6H2O(l) How many moles of water are produced when 4.5 moles of oxygen react?        (Hint: Use slides 5-8) 2. Given: I2     +    3 F2      ®     2 IF3 How many moles of I2 are needed to form 3 moles of IF3? How many moles of F2 are needed to form 10 moles of IF3? How many moles of I2 are needed to react with 3.5 moles of F2?        ...
Hydrazine, N2H4, once used as a rocket propellant, reacts with oxygen in the following equation. N2H4(g)...
Hydrazine, N2H4, once used as a rocket propellant, reacts with oxygen in the following equation. N2H4(g) +O 2(g) →N2(g) + 2 H2O(g) The reaction, at 50% yield, produces 4.0 moles of N2. What was the mass of hydrazine used? Assume that O2 is in excess. A) 64 g B) 0.063 g C) 260 g D) 32.0 g 42) 43) Which of the following is the lowest temperature? A) 313 K B) 37°C C) 54°F D) All of these temperatures are...
1)To lower the energy barrier in a reaction, enzymes change the path of the reaction between...
1)To lower the energy barrier in a reaction, enzymes change the path of the reaction between the reactants and products by doing what? A. Destabilizing the transition state by increasing the free energy to be used and lowering the activation energy B. Releasing carbonic acid into the environment to stabilize the transition state and lowering the activation energy C. Reduce the activation energy by stabilizing the transition state and decreasing its free energy D.Supply heat to stabilize the reactants and...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT