1) An aqueous solution containing 15.9 g of an unknown molecular (nonelectrolyte) compound in 103.0 g...
1) An aqueous solution containing 15.9 g of an unknown molecular (nonelectrolyte) compound in 103.0 g of water was found to have a freezing point of -1.5 ∘C.
Calculate the molar mass of the unknown compound.
b) Determine the required concentration (in percent by mass) for an aqueous ethylene glycol (C2H6O2) solution to have a boiling point of 109.3 ∘C.
c) What mass of salt (NaCl) should you add to 1.90 L of water in an ice cream maker to make a solution that freezes at -14.8 ∘C ? Assume complete dissociation of the NaCl and density of 1.00 g/mL for water.
d) A 1.21 m aqueous solution of an ionic compound with the formula MX2 has a boiling point of 101.55 ∘C.
Calculate the van't Hoff factor (i) for MX2 at this concentration.
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1) An aqueous solution containing 15.9 g of an unknown molecular
(nonelectrolyte) compound in 103.0 g...
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An aqueous solution containing 16.2 g of an unknown molecular (nonelectrolyte) compound in 109.5 g of...
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