1)A student dissolves 7.7g of ammonia NH3 in 475.mL of a solvent with a density of 0.83/gmL. The student notices that th

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1)A student dissolves 7.7g of
ammonia NH3 in 475.mL of a solvent with a
density of 0.83/gmL. The student notices that the volume
of the solvent does not change when the ammonia dissolves in
it. Calculate the molarity and molality of the student's
solution. Round both of your answers to 2 significant
digits.
-MOLARITY=
-MOLALITY=
2)A solution is made by mixing 13.g of acetyl
bromide CH3COBr and
70.g of chloroform CHCl3. Calculate the
mole fraction of acetyl bromide in this solution. Round your answer
to 2 significant digits.