Chapter 1 Supplemental Homework 5 points Name DUE: Fridáy 9/14/18 by Noon The fo
ID: 716794 • Letter: C
Question
Chapter 1 Supplemental Homework 5 points Name DUE: Fridáy 9/14/18 by Noon The following two questions are the last two questions on the Connect Chapter 1 Homework. For each question, enter the values listed for your question (it is algorithmic). Show all work including units to receive full credit. 1. Chlorine is used to disinfect swimming pools. The accepted concentration for this purpose is 1.00 ppm chlorine, or 1.00 g of chlorine per million grams of water. Calculate the volume of a chlorine solution (in milliliters) a homeowner should add to her swimming pool if the solution contains0 percent chlorine by mass and there are LS2-10 gallons (gal) of water in the pool. (I gal 3.785 L; density of liquids 1.00 g/mL)Explanation / Answer
5.50% by mass means 5.50 g of chlorine present in 100 g solution.
accepted concentration of water = 1 ppm
volume of water in pool = 4.52*10^4 gallons
= 4.52*10^4*3.785
= 1.711*10^5 L
= 1.711*10^8 ml (1 L = 10^3 ml)
mass of water in pool = 1.711*10^8 g
ppm = (mass of solute(chlorine)/mass of solution)*10^6
1 = (x/(1.711*10^8+x))*10^6
x = 171.1 g
mass of 5.5% chlorine solution required = 171.1*100/5.5
= 3110.91 grams
volume of 5.5% chlorine solution required = m/d
= 3110.91 g/1 g/ml
= 3110.91 ml
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