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Mole Calculation Practice Worksheet Solutions Answer the following questions: 1) How many moles are in 25.0 grams of water? 1.39 moles 1 mole H 2O = 18.0 g H 2O ... 1 mole oxygen molecules = 6.02 x 10 23 oxygen molecules 23.0 mol O 2 6.02 x 10 23 O 2 molecules 1 mol O 2 4) How many moles are in 3.4 x 10 23 molecules of H
The mole is one of the most important concepts in chemistry, as it allows for quantitative calculation of amounts of substances that may take part in chemical reactions. Various formulas are used to calculate the amount of substance (in mol): n = m M, where n = number of mol and M = molar mass (g mol–1) n = L N
Mole Calculation Worksheet 1) How many moles are in 40.0 grams of water? 2) How many grams are in 3.7 moles of Na 2 O? 3) How many atoms are in 14 moles of cadmium? 4) How many moles are in 4.3 x 10 22 molecules of H 3 PO 4? 5) How many molecules are in 48.0 grams of NaOH? 6) How many grams are in 4.63 x 10 24 molecules of CCl 4?
Do each type of calculation until you feel that you could do it without looking at notes. If you are very comfortable with a problem, skip down to harder ones. The answers will be on the web. 1. ________________How many moles of Na are in 42 g of Na? 2. ________________How many moles of O are in 8.25 g of O? 3.
Mole Practice Name: 23 Avogadro's Number (6.02 x 10 ) was not discovered by him, but named in honor of him. It was Dr. Avogadro's original hypothesis about the volume of gas molecules that led to the development of the mole concept many years later. Use your newfound molar repertoire to complete the following Date. The only known picture of
Calculate the molar mass of the substance. a) Calculate the mass of a single 2He atom (2 protons, 2 neutrons, 2 electrons). b) Calculate the mass of one mole of 2He atoms. c) Calculate the mass of a single 2He2+ ion.
Mole Calculation Practice Worksheet Answer the following questions: 1) How many moles are in 25 grams of water? 2) How many grams are in 4.5 moles of Li2O? 3) How many molecules are in 23 moles of oxygen? 4) How many moles are in 3.4 x 1023 molecules of H 2SO4? 5) How many molecules are in 25 grams of NH3? 6) How many grams are in 8.2 x 1022 ...
