If 27.9 g LiCl is dissolved in 175 g H_2O, what is the mass percent LiCl in the

Question

If 27.9 g LiCl is dissolved in 175 g H_2O, what is the mass percent LiCl in the solution? 0.376% 6.78% 13.8% 15.9% 19.0% If 26.5 g of methanol (CH_3OH molar mass = 320 g/mol) is added 735 g of water, what is the to molality of the methanol? 0.0348 mol/kg 2.03 mol/kg 1.13 mol/kg 3.61 mol/kg 36.1 m Which of the following statements is/are solute in equilibrium Solubility is defined as the concentration of dissolved with undissolved solute in a saturated solution. If two liquids mix completely in all proportions to form a solution, the liquids are immiscible If two liquids mix completely in any proportion to form a solution, the resulting solution is supersaturated. 1 only 2 only 3 only 1 and 2 2 and 3 Which of the following liquids will be miscible with water in all proportions: ethanol (CH_3CH_2O carbon tetrachloride (CCl_4), hexane (C_6H_14), and/or benzene? Hexane carbon tetrachloride ethanol benzene

Explanation / Answer

1)

The given mass of water = 175 g

The given mass of LiCl = 27.9 g

Total mass = 175 + 27.9 = 202.9g

So Mass % = mass of LiCl / Total mass of solution = 27.9 X 100 / 202.9 = 13.75%

Option C is correct

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