The normal freezing point of ethanol is -117.30 oC. How many grams of electrolyte K2SO4 (molar mass=58.1 g/mole) must be added to 35.0 g of ethanol (Kf (ethanol)=1.99 oC/m) to change its freezing point to -120.25 oC?​

The boiling point of liquids is very high what does it indicate

Which activity describes an application of topographic maps? check all that apply. recreation, such as camping and hiking engineering, such as the construction of roads and buildings science, such as mapping stars in the sky business, such as analyzing population centers science, such as analyzing surface features

6) (a) calculate the absorbance of the solution if its concentration is 0.0278 m and its molar extinction coefficient is 35.9 l/(mol cm). the depth of the cell is 5 mm. (b) what is the %t? (7) calculate the absorbance of the solution if the transmitted light intensity is 70% of the initial light beam intensity