ࡱ> !#  bjbjupup .. 66666JJJJ4~4J>|$$l66666=7Xw_cU0>],6 > : Mole Conversions Worksheet There are three mole equalities. They are: 1 mol = 6.02 x 1023 particles 1 mol = g-formula-mass (periodic table) 1 mol = 22.4 L for a gas at STP Each equality can be written as a set of two conversion factors. They are:  EMBED Equation.3   EMBED Equation.3   EMBED Equation.3   EMBED Equation.3   EMBED Equation.3   EMBED Equation.3  Mole-Particle Conversions 1. How many moles of magnesium is 3.01 x 1022 atoms of magnesium? 3.01 x 1022 atoms  EMBED Equation.3  = 5 x 10-2 moles 2. How many molecules are there in 4.00 moles of glucose, C6H12O6? 4.00 moles  EMBED Equation.3  = 2.41 x 1024 molecules 3. How many moles are 1.20 x 1025 atoms of phosphorous? 4. How many atoms are in 0.750 moles of zinc? 5. How many molecules are in 0.400 moles of N2O5? Mole-Mass Conversions How many moles in 28 grams of CO2 ? Gram-formula-mass of CO2 1 C = 1 x 12.01 g = 12.01 g 2 O = 2 x 16.00 g = 32.00 g 64.00 g/mol 28 g CO2  EMBED Equation.3  = 0.64 moles CO2 What is the mass of 5 moles of Fe2O3 ? Gram-formula-mass Fe2O3 2 Fe = 2 x 55.6 g = 111.2 g 3 O = 3 x 16.0 g = 48.0 g 159.2 g/mol 5 moles Fe2O3 EMBED Equation.3  = 800 grams Fe2O3 Find the number of moles of argon in 452 g of argon. Find the grams in 1.26 x 10-4 mol of HC2H3O2. Find the mass in 2.6 mol of lithium bromide. Mole-Volume Conversions 1. Determine the volume, in liters, occupied by 0.030 moles of a gas at STP. 0.030 mol  EMBED Equation.3  = 0.67 L 2. How many moles of argon atoms are present in 11.2 L of argon gas at STP? 11.2 L  EMBED Equation.3  = 0.500 moles 3. What is the volume of 0.05 mol of neon gas at STP? 4. What is the volume of 1.2 moles of water vapor at STP? Mixed Mole Conversions Given unit ( Moles ( Desired unit 1. How many oxygen molecules are in 3.36 L of oxygen gas at STP? 3.36 L EMBED Equation.3  EMBED Equation.3  = 9.03 x 1022 molecules 2. Find the mass in grams of 2.00 x 1023 molecules of F2. 12.624 g Gram-formula-mass 2 F = 2 x 19 g = 38 g/mol 2.00 x 1023 molecules EMBED Equation.3  EMBED Equation.3 = 12.6 g 3. Determine the volume in liters occupied by 14 g of nitrogen gas at STP. Ans. 11.2 L 4. Find the mass, in grams, of 1.00 x 1023 molecules of N2. Ans. 4.65 g 5. How many particles are there in 1.43 g of a molecular compound with a gram molecular mass of 233 g? Ans. 3.69 x 1021 6. Aspartame is an artificial sweetener that is 160 times sweeter than sucrose (table sugar) when dissolved in water. It is marketed by G.D. Searle as Nutra Sweet. The molecular formula of aspartame is C14H18N2O5 . a) Calculate the gram-formula-mass of aspartame. 294 g/mol b) How many moles of molecules are in 10 g of aspartame? 3.4 x 10-2 moles c) What is the mass in grams of 1.56 moles of aspartame? 458.64 grams d) How many molecules are in 5 mg of aspartame? 1.0238 x 1019 e) How many atoms of nitrogen are in 1.2 grams of aspartame? 4.9143 x 1021 GXZ      & ' ( ) + , ? @ A B C D W X Y Z \ ] p q r ufYj h. 5EHU\j[C h. CJUVaJjPh. 5EHU\jZC h. CJUVaJjh. 5EHU\jcZC h. CJUVaJj|h. 5EHU\jsZC h. CJUVaJjh. 5EHU\jZC h. CJUVaJjh. 5U\ h. H* h. 5\h. "Ge* + [ \ * + , o p $a$^p^pr s v w        ! $ ) g h i k l m p { | 훏͉͉͉zmch. CJOJQJjh. 5EHU\jA`C h. CJUVaJ h. EHh. CJ EHOJQJh. OJQJj>h. 5EHU\j`C h. CJUVaJh. 5H*\ h. EHh. j h. 5EHU\jK[C h. CJUVaJ h. 5\jh. 5U\&  G H I J L      % & ' ( + 9 : ] ^ _ a c w x y z 濷濷z濷濷h. H*OJQJh. OJQJj"h. 5EHU\jdbC h. CJUVaJjh. 5U\ h. >*h. 5H*\ h. 5\ h. EHh. EHOJQJ]h. OJQJ] h. EHh. h. CJOJQJh. 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