University:
Emporia State University
Course:
CH 126 | Chemistry Ii
Academic year:

2022
Views:

104

Pages:

2
Author:

Edgar Rowe

Name: Period: Date: Mole Conversions Review Directions: Answer the following questions to the best of your ability. Show your work and write your units in each step and in your final answer. Don’t forget to use parentheses around large numbers in your calculator. Part 1. Mole-Particle Conversions 1.) How many moles are in 3.68 * 1024 particles of CaCO3? 2.) How many atoms are in 4.88 moles of Mg? 3.) How many moles are in 3.93 * 1025 molecules of Al2O3? Part 2. Calculating Molar Mass 4.) Calculate the molar mass of Al2O3. 5.) Calculate the molar mass of MgCl2. 6.) Calculate the molar mass of Mn2O7. Part 3. Mole-Mass Conversions 7.) Convert 33.8 g Al2O3 to moles. 8.) Convert 4.67 g MgCl2 to moles. 9.) Convert 2.72 mol Mn2O7 to grams. Part 4. Mass-Particle Conversions 10.) Convert 8.33 * 1024 molecules of Al2O3 to grams. 11.) Convert 1.28 * 1026 molecules of MgCl2 to grams. 12.) Convert 7.67 g Mn2O7 to molecules.