2.) In a recrystallization process involving sodium benzoate, what is the minimum vol- ume of boiling water needed to dissolve 0.200 g of sodium benzoate? The solubility of sodium benzoate in boiling water is 1 gram per 1.4 mL. About how much sodium benzoate will remain dissolved when the water is cooled to 25°C? The solubility of sodium benzoate at 25°C is 1 gram per 1.8 mL. Calculate the maximum mass of solid sodium benzoate that can be recovered when the cooled solution is filtered.
Answers: 1
Chemistry, 22.06.2019 16:30
4. a 20-kg child is tossed up into the air by her parent. the child is 2 meters off the ground traveling 5 m/s. circle one: ke / gpe / both show your work for finding the values of each type of energy the object has:
Answers: 1
Chemistry, 22.06.2019 22:30
You just calculated that the heat of fusion for chloromethane is 6400 j/mol. the heat of fusion for hydrogen is 120 j/mol.? which of the following account for this difference? more than one correcta. chloromethane can absorb more energy at the same temperature. b. hydrogen has stronger intermolecular forces than chloromethane. c. hydrogen molecules can pack more closely than chloromethane molecules. d. chloromethane experiences dipole-dipole interactions. e. chloromethane has a higher molar mass than hydrogen.
Answers: 3
Chemistry, 22.06.2019 23:30
Imagine a small synthetic vesicle made from pure phospholipids enclosing an interior lumen containing 1 mm glucose and 1 mm sodium chloride. if the vesicle is placed in pure water, which of the following happens faster? a. na+ diffuses out. b. cl– diffuses out. c. h2o diffuses in. d. glucose diffuses out. e. sodium chloride diffuses out.
Answers: 3
2.) In a recrystallization process involving sodium benzoate, what is the minimum vol- ume of boilin...
Mathematics, 13.11.2019 18:31
Mathematics, 13.11.2019 18:31
French, 13.11.2019 18:31
French, 13.11.2019 18:31
History, 13.11.2019 18:31
Biology, 13.11.2019 18:31
Business, 13.11.2019 18:31
Mathematics, 13.11.2019 18:31
French, 13.11.2019 18:31
Spanish, 13.11.2019 18:31