CHEM20ASG3-2-KEY - NAME_KEY CHEMISTRY 20 ASSIGNMENT 3-2...

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NAME ___________ KEY _____________ CHEMISTRY 20 ASSIGNMENT 3-2 TOPIC(S) COVERED: Text (92-112) TOTAL MARKS: 46 DIRECTIONS: Read each question carefully and place your answer on this sheet. Please show all your work unless otherwise indicated. 1. Rearrange each of the following formulas to find the unknown variable. (8 marks) n = v/V find v v = nV find V V = v/n P 1 V 1 = P 2 V 2 find V 2 V 2 = P 1 V 1 P 2 find P 2 P 2 = P 1 V 1 V 2 P 1 V 1 = P 2 V 2 T 1 T 2 find T 1 T 1 = P 1 V 1 T 2 P 2 V 2 find T 2 T 2 = P 2 V 2 T 1 P 1 V 1 1
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V 1 = V 2 T 1 T 2 find T 2 T 2 = T 1 V 2 V 1 find V 2 V 2 = V 1 T 2 T 1 2. You have determined that there are 4.005 × 10 −4 mol of a gas in a container. The mass of the gas is 16.00 mg. What is the molar mass of the gas? (4 marks) m = 16.00 mg = 0.016 g n = 4.005 × 10 −4 mol M = ? M = m/n = 0.016 g/4.005 × 10 −4 mol = 39.95 g/mol 3. Identify which macroscopic property (text page 99) explains the following real-life situations. (5 marks) a) A full propane tank can provide enough fuel for an entire season of barbecues. COMPRESSIBLE
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CHEM20ASG3-2-KEY - NAME_KEY CHEMISTRY 20 ASSIGNMENT 3-2...

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