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Since the freezing point of a solution depends on the number of particles, what would you expect the freezing point of 0.1 m solutions of aqueous NaCL and BaCl2? If the actual freezing points of these solutions were -0.348 C and -0.470 C respectively, what are the van't Hoff factors for these two solids?
Determine the volume of a 0.510 M KMnO_4 solution required to completely react with 2.90 g of Zn.
Some ice cubes at 0 degrees C with a total mass of 379g are placed in a microwave oven and subjected to 750. W (750. J/s)of energy for 5.00 minutes. (Assume all energy of the microwave is absorbed by the water and no heat loss by the water.)
How much heat is needed to warm 45.6 grams water from 23.0° C to 40.0 °C?
The amount of H2O2 in 15.8g of hair bleach was determined by titration with a standard potassium permagnate soln. MnO4-(aq)+H2O2(aq)--Mn2+(aq)+O2
Hydrogen gas was cooled from 150C to 50 C. It's new volume is75 mL. What was it's original volume?
A rigid container of O2 has a pressure of 340 kPa at a temperature of 713 K. What is the pressure at 273 K?
1.00 mol of phosphorus reacted with excess fluorine: P4 + 6F2 -> 4PF3 Calculate the number of moles of PF3 produced, assuming the reaction went to completion
If a 200 piece of gold (density =19.32 ) is hammered into a sheet measuring 2.5 by 1.0 ft , what is the average thickness of the sheet in meters?
When 1.0 g of gasoline burns, 11500 calories of energy are given off. If the density of gasoline is 0.74 g/mL, how many kilocalories of energy are obtained from 1.1 gallons of gasoline?
What is the vapor pressure of mercury at room temperature, 25 degrees celsius.
Draw the flow of e- and the products of the Methoxide Ion and water including formal charges on all compounds.
.914g sample of stannous flouride gives a 1,078g precipitate of stannous phosphate. calculate the theoretcial yeild?
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