The molecular liquid chloroform (CHCl,) has a density of 1.48 gmL, while the mol

Question

The molecular liquid chloroform (CHCl,) has a density of 1.48 gmL, while the molecular liquid bromoform (CHBrg) has a density of 2.89 gmL. (a) When 57.9 mL of CHCl, and 73.1 mL of CHBr, are mixed, a clear liquid solution forms Is this a chemical or a physical change? phrsic Is the solution a pure substance, a homogeneous mixture or a heterogeneous mixture? homogeneous mturse (b) ls the density of this solution a chemical or a physical propernt X g/mL (e) Assuming that the volumes are additive upon mixing, what is the density of the solution?

Explanation / Answer

c)

Answer

Density of the solution = 2.267g/ml

Explanation

Volume of CHCl3 = 57.9ml

Density of CHCl3 = 1.48g/ml

mass of CHCl3 = 57.9ml × 1.48g/ml = 85.692g

Volume of CHBr3 = 73.1ml

Density of CHBr3 = 2.89g/ml

mass of CHBr3 = 73.1ml × 2.89g/ml = 211.259g

Total mass = 296.951g

Total volume = 57.9ml + 73.1ml =131ml

Density = mass / volume

Density = 296.951g/ 131ml

Density = 2.267g/ml

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