What is the minimum volume of boiling water needed to dissolve 0.200g of sodium
ID: 818759 • Letter: W
Question
What is the minimum volume of boiling water needed to dissolve 0.200g of sodium benzoate? The solubility of sodium benzoate in boiling water is 1gram per 1.4mL. About how much sodium benzoate will remain dissolved when the water is cooled to 25 degrees Celsius? The solubility of sodium benzoate at 25 degrees Celsius is 1gram per 1.8mL. Calculate that maximum mass of solid sodium benzoate that can be recovered when the cooled solution is filtered.
What is the minimum volume of boiling water needed to dissolve 0.200g of sodium benzoate? The solubility of sodium benzoate in boiling water is 1gram per 1.4mL. About how much sodium benzoate will remain dissolved when the water is cooled to 25 degrees Celsius? The solubility of sodium benzoate at 25 degrees Celsius is 1gram per 1.8mL. Calculate that maximum mass of solid sodium benzoate that can be recovered when the cooled solution is filtered.Explanation / Answer
At boiling point:
Volume of water required to dissolve 1 g of sodium benzoate = 1.4 mL
Volume of water required to dissolve 0.200 g of sodium benzoate = 0.200/1 x 1.4
= 0.28 mL
At 25 deg C:
Mass of sodium benzoate dissolved in 1.8 mL of water = 1 g
Mass of sodium benzoate dissolved in 0.28 mL of water = 0.28/1.8 x 1
= 0.156 g
Mass of sodium benzoate recovered = 0.200 - 0.156
= 0.044 g
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.