ICAs - Meeting 15.docx - ICAs Conservation of Mass 1 Inputs...

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ICAs: Conservation of Mass 1. Inputs and outputs : Given the following systems, think of as many inputs, outputs, accumulations, and generations as you can. a. A rainforest b. A clothing manufacturing plant c. The Gulf of Mexico d. Texas A&M University 2. Converting between moles and masses : The molar mass of polystyrene (used in Styrofoam) is 100,000 g/mol. a. How many moles are in the following: i. 800 g ii. 1430 g iii. 2 g b. How many grams are in the following: i. 0.014 mol ii. 6 mol iii. 134.59 mol 3. A plant currently manufactures 100,000 liters of normal saline solution (9 grams of NaCl/1000 ml of water) each day for use in intravenous fluid delivery. The CEO of the company wants to diversify and make hypertonic saline solution (70 grams of NaCl/1000 ml of water) for use in cough expectorates. a. If the CEO wants to turn 100,000 liters of normal saline solution into hypertonic saline solution, how many grams of NaCl need to be added? b. If the CEO does not want to change the amount of salt per day and wants to split the salt
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