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2023 Basic Chemistry
Lesson 32 Colligative Properties
Question | Answer |
---|---|
osmotic pressure is ? a/ a light saber----b/pressure applied to a solution to prevent osmosis----c/pressure applied to a solution that decreases the boiling point of the osmosis-----d/depression constant | b/pressure applied to a solution to prevent osmosis |
The freezing point, boiling point, and osmotic pressure are called ?--- a/molal properties---b/colligative properties---c/ residual properties---d/klingon properties | b/colligative properties |
What is the freezing poin tof a solution that contains one mole of MgBr2?----a/0.00 oC----b/-1.86 oC----c/ -3.72 oC-----d/ -5.58 oC | d/ -5.58 oC |
As the molality of a solution increses, its osmatic pressure? a/ increases-----b/ decreses----c/ remains the same | b/ decreses |
what is the boiling point of a 2 m NaCl?----- a) 301 degrees fahrenheit-----b) 208 oCdegrees celsius ---- c)OCC kalvin------d)108 degrees celsius | b) 208 oC |
What is osmosis?---a/mass mass volume---/b the movement of solvent molecules form an area of high solvent concentration to an area of low solvent cocentration---c/the pressure that must be applied to a solution to prevent osmosis | b/ the movement of solvent molecules form an area of high solvent concentration to an area of low solvent cocentration-- |
What is the molal boiling point elevation constant?---a/ mass of hydrogen squared---b/altitude of the sun --c/ amount a one molal solution of non electrolyte wil raise the boiling point of a solution d/ energy equals mass times the speed of light | c/ amount a one molal solution of non electrolyte wil raise the boiling point of a solution |
True or False ---boiling point of water is 212 degrees Celcius | False -Fahrenheit is 212 degrees |
True or False--KCl has two particles per formula unit | True |