1. A 100 mL solution contains 4.7g MgCl2 (MM = 94 g/mol). The density of the solution is 1.03 g/mL. Express the concentration (a) % by mass or mass %; (b) M

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1. A 100 mL solution contains 4.7g MgCl2 (MM = 94 g/mol). The density of the solution is 1.03 g/mL. Express the concentration in
(a) % by mass or mass %; (b) M
2. How many grams of glycerine, C3H5(OH) (MM = 92 g/mol) is mixed with 36 g H2O to make a solution where the mol fraction of
glycerine is 0.2?
Transcribed Image Text:1. A 100 mL solution contains 4.7g MgCl2 (MM = 94 g/mol). The density of the solution is 1.03 g/mL. Express the concentration in (a) % by mass or mass %; (b) M 2. How many grams of glycerine, C3H5(OH) (MM = 92 g/mol) is mixed with 36 g H2O to make a solution where the mol fraction of glycerine is 0.2?
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