# Chemistry

(1)Aluminum reacts with oxygen to produce aluminum oxide according to the following reaction:
4Al(s) + 3O2(g) → 2Al2O3(s)
Calculate the moles of Al2O3 produced when the reaction is performed with 31.06 g of each reactant.

(2)Nitrogen dioxide reacts with water to produce nitric acid and nitrogen monoxide according to the following reaction:
3NO2(g) + H2O(g) → 2HNO3(g) + NO(g)
Calculate the moles of nitric acid produced when 46.79 grams of each reactant is used.

(3)Ammonia reacts with oxygen to produce nitrogen monoxide and water according to the following equation:
4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(l)
Calculate the moles of water produced in this reaction when 88.82 grams of each reactant are used.

(4)A rocket can be powered by the reaction of dinitrogen tetroxide (N2O4) and hydrazine (N2H4):
N2O4(l) + 2N2H4(l) → 3N2(g) + 4H2O(g)
A rocket was designed to hold 4.16 kilograms dinitrogen tetroxide and excess hydrazine. How much nitrogen gas in grams would be produced in this rocket?

1. 👍 0
2. 👎 0
3. 👁 95
1. #1, 2, and 3 are limiting reagent problems. #4 is a plain vanilla stoichiometry problem.
Here are worked examples for both. Just follow the steps.

http://www.jiskha.com/science/chemistry/limiting_reagent_problem.html

http://www.jiskha.com/science/chemistry/stoichiometry.html

1. 👍 0
2. 👎 0
posted by DrBob222
2. dgzxtxcyj,uc

1. 👍 0
2. 👎 0
posted by jhychjn

## Similar Questions

1. ### Chemistry

Aluminum reacts with oxygen gas to produce aluminum oxide. How many moles of aluminum oxide would you expect to produce if you reacted 14.5 moles of oxygen gas with excess aluminum? 4Al +3O2 --> 2Al2O3 14.5 mol O2 x 4 mol Al / 3

asked by Sydney on May 29, 2017
2. ### Chemistry

Can you tell me if these are right please? When 2.50g of copper reacts with oxygen the copper oxide product has a mass of 2.81g. What is the simplest formula of the copper oxide. I got Cu2O (copper (I) oxide). Aluminum and oxygen

asked by Jason on October 19, 2010
3. ### Intro Chem

4Al(s) + 3O2(g)2Al2O3(s) Delta H reaction = -3351.4 kJ How much energy is transferred when 42.6 g of aluminum reacts to form aluminum oxide? Thanks

asked by John on November 2, 2010
4. ### Chemistry

1. Aluminum reacts with oxygen to produce aluminum oxide which can be used as an adsorbent, desiccant or catalyst for organic reactions. 4Al(s) + 3O2(g) → 2Al2O3(s) A mixture of 82.49 g of aluminum ( Picture = 26.98 g/mol) and

asked by Tim H on September 15, 2014
5. ### Chemistry

4Al + 3O2 = 2Al2O3. If 41.5 g aluminum and 69.0 g oxygen undergo a reaction that has a 67.0% yield, What mass of aluminum oxide forms. Please help by showing steps to find answers. Thanks

asked by Pamela on July 17, 2011
6. ### Chemistry

In this balanced equation 4Al + 3O2 = 2Al2O3. When 0.54 mole aluminum is reacted in a closed container with 7.80 g oxygen, how many grams of aluminum oxide can form. Please show steps to work out. Thanks

asked by Pamela on July 16, 2011
7. ### Chemistry

Aluminum cookware is reffered ti as "anodized aluminum". The anodizing process puts a layer of aluminum oxide on the aluminum, protecting it from corrosion. Consider the reaction of 10.00 grams of aluminum with 10.00 grams of

asked by Stacey on February 15, 2009
8. ### chemistry

If 45.3 grams of aluminum react with an excess of oxygen, as shown in the balanced chemical equation below, how many grams of aluminum oxide can be formed? 4Al + 3O2 2Al2O3

asked by Anonymous on October 18, 2011
9. ### chemistry

Consider the following reaction 4Al + 3O2 = 2Al2O3 It takes 2.00 L pure oxygen gas at STP (0C ,1atm ) to react completely with a certain aluminum. What is the mass of aluminum reacted?

asked by NONO on November 18, 2011
10. ### chemistry

A 4.78-g sample of aluminum completely reacts with oxygen to form 6.67 g of aluminum oxide Use this data to calculate the mass percent composition of aluminum in aluminum oxide. (Sorry need help with this!)

asked by Luis on September 27, 2014

More Similar Questions