Worksheet #13 Using Avogadro’s number and Molar Masses (2p.) 1. Calculate the molar mass of each of the following compounds: AgCl CaBr2 Li2O C6H12O6. 2. Using the conversion factor [ Molar Mass = 1 Mole] solve the following problems using dimensional analysis. Keep track of your units! a) Calculate the mass of 5.634 moles of HCN.
Although 3.75 x 1012 lithium atoms appears to be a large number, a mole is quite a bit larger than this, and 3.75 x 10 12 lithium atoms doesn’t even account for 1 mole! Correct answer: 6.23 x 10 -12 moles Li atoms
Mole packet answers - Avogadro's Number Worksheets
THE MOLE AND Name Answer Key NUMBER One mole of a substance contains Number (6 x 102) of molecules. How many molecules are in the quantities below? 1.
Use Avogadro's number for conversion. A chemist has a jar containing 388.2 g of iron filings. How many moles of iron does the jar contain? What is given in the problem? What are you asked to find? What step is needed to convert from grams of Fe to number of moles of Fe?
MOLE PROBLEM SET #1: Avogadro’s Number and Molar Mass 1) REPRESENTATIVE PARTICLES Directions: For each substance below, state the representative particle (atom, ion, molecule, or formula unit). If the RP is a molecule, state the number of atoms that make up the molecule. If the RP is a formula unit, state the
Mole and Avogadro’s Number Worksheet with Answers - Docsity
Download Mole and Avogadro’s Number Worksheet with Answers and more Chemistry Exercises in PDF only on Docsity!
The number 6.02 x 1023 is known as Avogadro’s number in honor of an Italian Professor of physics, Amadeo Avogadro, who did considerable work on the development of atomic theory and the mole concept in about 1810. Given this number we can calculate the number of particles in a known number of moles or the number of moles
Section: Avogadro’s Number and Molar Conversions Solve the following problems, and write your answer in the space provided. 1. Determine the number of atoms present in 4.00 mol of aluminum. 2. Determine the number of atoms present in 1.55 mol of sodium. 3. Convert 2.65 1025 atoms of fluorine to moles of fluorine atoms. 4.
1) How many moles of oxygen atoms are in 3.00 moles of sulfur trioxide? 2) How many molecules are present in 0.865 mole of NO2? PROBLEMS. Show work with proper Significant Figures and Units to receive credit. 3) How much does 0.23 mole of diphosphorus pentoxide weigh?
Moles, Molar Mass, and Avogadro’s Number Block: _____ Copyright © 2007 by the Newton South High School Science Department, Newton, MA. Show all work for problems that require …
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