Dr. Paul Moses
1.1 Concept Worksheet for use of Significant Figures in Calculations In addition and subtraction, report the answer to the same place as the least accurate number being added or subtracted. In multiplication or division, report the an
Dr. Paul Moses
3.5 Concept Worksheet for Formula Stoichiometry with Moles The coefficients in formulas tell you the relative numbers of each element. That number can either be atoms or moles of atoms. We will normally work in moles of atoms and mole
Dr. Paul Moses
3.3 Concept Worksheet for Determining Weight % from a Formula In determining the molecular weight of a compound we determine the weight contribution from each element. We can take this weight contribution, divide it by the total molec
Dr. Paul Moses
3.2 Concept Worksheet for Moles to/from Gram Conversion The molecular weight gives us the weight of a mole of that compound in grams. This allows us to convert from grams (easily measured) to moles (needed as a basis for converting to
Dr. Paul Moses
3.1 Concept Worksheet for Formula to Formula Weight The formula of a compound tells you how many of each species are present. That coupled with the atomic weight of each species gives the total weight, typically referred to as formula
Dr. Paul Moses
2.5 Concept Worksheet for Naming Oxoacids Oxoacids refer to a large family of acids with a formula of HXOy where X is any nonmetal. In the series, the more oxygens, the stronger the acid. These acids are named from their anions by cha
Dr. Paul Moses
1.6 Concept Worksheet for Unit Conversions Often in problems we need to convert from one type of unit to another without changing the overall quantity. This is done via dimensional analysis, in which a number is multiplied by a ratio
Dr. Paul Moses
2.4 Concept Worksheet for Distinguishing Ionic and Covalent Compounds One of the keys in a number of problem types is to determine if a compound is ionic or covalent. Ionic compounds are formed by a cation and anion, either a metal wi
Dr. Paul Moses
1.5 Concept Worksheet for Density Density is the ratio of a substances weight and volume, usually as grams per ml. If you know weight and volume, you find density by dividing the two. If you know weight, you can use density to convert