# Module 3 Unit 3 Assignment A.doc - MODULE 3 UNIT 3...

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MODULE 3 UNIT 3 Assignment Part A This assignment is to be sent to your instructor for evaluation. 1.Assuming that temperature remains constant, calculate the final volume ineach of the following cases: (9 points)a)Pressure of a sample of 45 L of gas is increased and the gas goes from 100 kPa to 125 kPa; b)A volume of 356 mL of gaseous hydrogen at a pressure of 95 kPa is brought to reference pressure. c)Pressure of a sample of 2.5 L of air goes from 1.0 atm. to 250 kPa. V2=2.5L* 101kPa/250kPa=1.01L 2.A bottle contains a volume of 18 L of helium at a pressure of 1.3 x 104kPa.How many balloons of 4.0 L, inflated at a pressure of 130 kPa, can we fill from the bottle of helium? Assume temperature remains constant. (3 points) P1*V1=P2*V21.3 x 104kPa*18L =130 kPa*V2V2=18L* 1.3 x 104kPa/130kPa=1800L1800l/4.0L=450 bottles References : Bielecka, A. (2020). ‘Unit 3 presentation’ [presentation slide]. Module 3 . (Accessed: February 2020). Submission Instructions Submit your assignment using the drop box on the Assignment page for this unit.