9 Questions |
By Tbautista | Last updated: Nov 23, 2020
| Total Attempts: 336
Questions and Answers
Ammonia, , and copper (II) oxide react to form solid copper, water and nitrogen gas. What are the coefficients for the balanced chemical equations.
If 40g of ammonia reacts with 80.0g copper (II) oxide, determine the limiting reactant. Use nitrogen gas as your unknown.
Determine the mass of nitrogen gas produced in the reaction.
Which reactant is the excess reactant?
How much of the excess reactant remains after the reaction?
**Ammonia is the excess reactant, meaning it will not be completely used up in a reaction. In other words, you will not be using all 40g of ammonia given. In order to find out how much is left over after the reaction, do a mass-mass problem. 80g CuO is the given and grams of ammonia is the unknown. This answer is how much ammonia is used up. Now, figure out how much is leftover!
When copper(II) oxide is heated with hydrogen gas, water and copper metal is produced. What mass of copper can be obtained if 32.0g of copper(II) oxide is used?
Nitrogen monoxide reacts with oxygen gas to produce nitrogen dioxide. What are the coefficients that balance the equation?
What is the theoretical yield of hydrogen gas if 36.0 g of water decomposes to produce hydrogen gas and oxygen gas?
2.02 g H2
1.01 g H2
4.04 g H2
What is the percent yield of hydrogen gas if 3.80g of hydrogen is collected in the lab?
Stoichiometry is the quantitative interpretation of the amount moles of the matter in a chemical reaction. It is also known as the molar bookkeeping of chemistry which means, the study of chemistry and its uses in various fields...
Questions: 10 | Attempts: 1294 | Last updated: Jun 29, 2019