![crazylife77](/avatars/13496.jpg)
crazylife77
13.11.2019 •
Chemistry
If 12.2 g of lithium reacts with 12.2 g of oxygen what is the theoretical yield of the reaction in grams
Solved
Show answers
More tips
- A Animals and plants 5 Tips for Taking Care of Yews to Keep Them Green and Beautiful...
- H Health and Medicine How to Help Men Gain Weight?...
- A Auto and Moto Discovering the Leader: What is the Most Expensive Car in the World?...
- H Health and Medicine Hangover: How to Get Rid of It Quickly?...
- S Style and Beauty How to Choose the Right Fur Coat and Avoid Regrets?...
- C Computers and Internet How to Create a Folder on Your iPhone?...
- G Goods and services How to sew a ribbon: Tips for beginners...
- F Food and Cooking How to Make Mayonnaise at Home? Secrets of Homemade Mayonnaise...
- C Computers and Internet Which Phone is Best for Internet Surfing?...
- F Food and Cooking Everything You Need to Know About Pasta...
Answers on questions: Chemistry
- C Chemistry Aldehydes are the product of oxidation of:...
- M Mathematics Help asap struggling...
- E English *Please bold your responses. 1. Peggy Ann McKay used many descriptive words and phrases to explain what she is sick with. How many ailments did she have? Thinking of imagery, find...
- E English Refer to the Newsela article Climate Change in Hawaii and U.S. Tropical Islands. Part A Based on the article, which inference can be made about coral reefs? A: Coral reefs are largely...
- M Mathematics April, May and June have 90 sweets between them. May has three-quarters of the number of sweets that June has.April has two-thirds of the number of sweets that May has. How many sweets...
- S Social Studies Writing Prompt: Describe causes of the French Revolution in complete sentences. Be as descriptive as possible. There were many causes of the French revolution louis XVI was an absolute...
Ответ:
45.57 g of LiO
Explanation:We are given;
Mass of Lithium = 12.2 g
Mass of oxygen = 12.2 g
We are required to calculate the theoretical yield of the reactant.
The reaction between Lithium and oxygen is given by;
2Li(s) + O₂(g) → 2LiO(s)
Step 1: Determine the rate limiting reagentWe need to determine the number of moles of Lithium and Oxygen to determine the rate limiting reagent.Moles of Lithium;
Moles = Mass ÷ Molar mass
Molar mass of Lithium = 6.941 g/mol
Therefore;
Moles of Lithium = 12.2 g ÷ 6.941 g/mol
= 1.758 moles
Moles of oxygen
Molar mass of oxygen = 16.0 g/mol
Moles of oxygen = 12.2 g ÷ 16.0 g/mol
= 0.7625 moles
From the reaction 2 mole of Li reacts with 1 mole of oxygen to produce 2 moles of LiO.
Therefore, Oxygen is the limiting reagent because it has fewer number of moles
Step 2: Calculating the number of moles1 mole of oxygen reacts to produce 2 moles of LiO.
Therefore, the mole ratio of oxygen to Lithium oxide is 1 : 2
Thus, moles of LiO = Moles of oxygen × 2
= 0.7625 moles × 2
= 1.525 moles of LiO
Step 3: Calculating the theoretical mass of LiOMass = number of moles × Molar mass
Molar mass of LiO = 29.88 g/mol
Therefore;
Mass of LiO = 1.525 moles × 29.88 g/mol
= 45.567 g
= 45.57 g
Therefore, the theoretical mass of the product, LiO is 45.57 g
Ответ: