Astudent dissolves 15.g of styrene in 250.ml of a solvent with a density of 0.88g/ml. the student notices that the volume of the solvent does not change when the styrene dissolves in it. calculate the molarity and molality of the student's solution. round both of your answers to 2 significant digits. molarity==

The molarity and molality of styrene solution is 0.58 M and 0.66 m respectively

Explanation:

To calculate the mass of solvent, we use the equation:

Density of solvent = 0.88 g/mL

Volume of solvent = 250. mL

Putting values in above equation, we get:

To calculate the molarity of solution, we use the equation:

Given mass of styrene = 15. g

Molar mass of styrene = 104.15 g/mol

Volume of solution (solvent) = 250. mL

Putting values in above equation, we get:

To calculate the molality of solution, we use the equation:

Where,

= Given mass of solute (styrene) = 15 g

= Molar mass of solute (styrene) = 104.15 g/mol

= Mass of solvent = 220 g

Putting values in above equation, we get:

Hence, the molarity and molality of styrene solution is 0.58 M and 0.66 m respectively.

the old alchemists made significant contributions to science even though there starting premises were off a bit. their conclusions after failure would steer them into better directions for investigation. science is no more than close observation and the initial mistakes result in rethinking and retrying experiments.

they are both synthetic elements

explanation:

d