Determine the mass in grams of cycloheptane that must be added to 25 g of benzene...

Question

Question

Determine the mass in grams of cycloheptane that must be added to 25 g of benzene to make a 0.62 m solution. Enter your answer to 2 decimal places.

science chemistry

Answer 1

Answer #1

mass of benzene = 25g = 0.025kg

molality = no of moles of solute/weight of solvent in Kg

0.62 = no of moles of cycloheptane /0.025

no of moles of cycloheptane = 0.62*0.025 = 0.0155 moles of cycloheptane

mass of cycloheptane = no of moles * gram molar mass

= 0.0155*98 = 1.52g >>>>answer

Answer 2

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