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{"ops":[{"insert":"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\n2.)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?\n3.)How many mL of ethyl alcohol can be distilled from 1.5 L of a 90 proof wine?\n4.)58.8 g H2SO4 (MM = 98 g\/mol) is added to H2O to make a 500 mL solution. If the density of the solution is 1.2 g\/mL, calculate the (a) M; (b) m.\n5.)How many grams of CaCL2 (MM = 110 g\/mol) should be dissolved in H2O to prepare a liter of 1.2M solution?\n6.)How many mL of 6M HCl solution should be diluted to make 200 mL of a 1.5M solution?\n7.)To what volume must 30 mL of a 2.5M NaOH solution be diluted to make a 0.4M solution?\n"}]}
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