Module Three Assignment
Name:
Chemical Composition and Calculations
Instructions: Write out a linear equation to answer each question.
1. How many molecules of oxygen are found in 3.00 moles of oxygen?
2. How many grams are in 5.87×1020 molecules of sulfur?
3. How many atoms are found in 5.90 g of magnesium (Mg)?
4. How many atoms are found in 3.45 g of CO2?
Instructions: Calculate the mass percent composition of a compound. Show all of your work.
5. Calculate the mass percent of 0.685 g of H, which reacts with oxygen to form 2.32 g H2O.
6. Calculate the mass percent of manganese (Mn) in potassium permanganate (KMnO4).
Instructions: Calculate the empirical or molecular formula for compounds. Show all of your work.
7. A 2.87 g sample of carbon reacts with hydrogen to form 3.59 g of car fuel. What is the empirical formula of the car fuel?
8. Glucose is a carbohydrate that contains carbon, hydrogen, and oxygen. The empirical formula of glucose is CH2O and its molar mass is 180.12 g/mol. Find the molecular formula of glucose.
Chemical Bonding
Instructions: Draw the Lewis Structures for the following molecules. There are free software programs available online that will allow you draw these structures. You can also use drawing tools on your computer or freehand it, take a picture and insert it into this document.
1. ZnCl2
2. CH4
3. NI3
4. H2O
Instructions: Draw the resonance structures for the following compounds.
5. NO3-
Instructions: Give the molecular geometry and the bond angles for the following compounds.
6. H2O
7. CCI4
8. CO2
9. NH3
Instructions: There are various types of covalent bonds. Determine if the following molecules are polar, nonpolar, or ionic compounds.
10. NaCl
11. CH4
12. BH2Cl
13. H2O
14. CCI4
Naming Acids
Instructions: Provide the name of each of the following acids.
1. HBr
2. HCl
3. HC2H3O2
4. HNO3
Instructions: Provide the molecular formula for the following acids.
5. Hydrocyanic acid
6. Phosphoric acid
Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.
You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.
Read moreEach paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.
Read moreThanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.
Read moreYour email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.
Read moreBy sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.
Read more