× G you need to dissolve CaC × gcom cms/mod/ibis/view.php?id-2262280 allege . CH

Question

× G you need to dissolve CaC × gcom cms/mod/ibis/view.php?id-2262280 allege . CHEM 1120-Spring16-ESTES Activities and Due Dates HW 11 2/10/2016 10:10 AM 29.8/100 Print Calculator Periodic Table Question 8 of 23 sapling leerning You need to dissolve CaCl2 in water to make a mixture that is 33.5% calcium chloride by mass. If the total mass of the mixture is 322.0 g, what masses of CaCl2 and water should be used? Mass of CaCl Number CaCI, Mass of water Number R H,O Check Answer Next Exit Previous ALIENWARE

Explanation / Answer

Given:

Mass percent of calcium chloride is 33.5 %

Total mass of mixture =322.0 g

We have to find mass of water and calcium chloride.

Mass percent is shown by using following formula.

Mass percent of solute = (Mass of solute / mass of solution ) x 100

Here we are given mass percent and mass of solution we can use these two get mass of solute which is calcium chloride.

33.5 g= Mass of calcium chloride / 322.0 g ) x 100

Mass of calcium chloride = (33.5 / 100 ) x 322.0 g = 107.87 g

So the mass of calcium chloride = 108. G Calcium chloride

Mass of water = Mass of solution – mass of solute = 322.0 - 108.0 = 214. g water

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