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Assignment: Chemical Quantities Converting between a sample's mass, volume, number of moles, and number of particles is all possible with the help of conversion factors like molar mass, molar volume, and Avogadro's number. In this assignment, demonstrate your understanding of quantities in chemistry by completing a problem set. Instructions Your task is to complete the questions in the problem set. Read each question carefully, identifying your unknown values. Be sure to show any formulas and calculations you use to solve the problems. All answers should be reported in scientific notation, with the correct number of significant digits, and with the correct units. Questions How many moles are in a 2.5 g copper penny? (3 marks) What is the mass of 1.95 moles of water? (4 marks) How many nickel atoms are in a nickel coin with a mass of 3.95 grams? (4 marks) What is the mass of 5.3 litres of carbon dioxide gas at STP? (5 marks) Assessment Details Your submission should include the following: Your answers to the problem set All mathematical calculations Your answers reported to the correct number of significant digits Your answers reported in scientific notation with the correct units