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Calcium Nitrite (CA(NO3)2) is used as a corrosion inhibitor in lubricants. A solution is prepared by dissolving 18.536g of calcium nitrite in 183.544g of distilled water. Calculate the boiling and freezing points of this solution.
Kb= 0.512 degrees C/m
Kf= 1.86 degrees c/ m
Molality of solution (m) i=(1+2)/1 ??? do not know what this part means
VON HOFFS Factor (i) ?
boiling pint elevation?
Boiling point of this solution?
Freezing point depression?
Freezing point solution?
What would be the hybridization for a molecule with a central atom that is bonded to 5 peripheral atoms and that has 3 nonbonding valence
What volume of .250 M calcium chloride would be required to precipitate silver chloride if it is mixed with 600.0 ml of 0.650 M Silver nitrate.
What effect on the temperature of a boiling liquid and on its distillation temperature is produced by a soluble, nonvolatile impurity?
Assume that a particular reaction evolves 243 kJ of heat and that 28 kJ of PV work is gained by the system....? 1) What are the values of delta E and delta H for the system? 2) What are the values of delta E and delta H for the surroundings?
Calculate the number of grams of propane (C3H8) required to heat all of the water in a 50-gallon hot-water tank from 23.4 degrees C to 65.0 degrees C
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A gaseous reaction occurs at a constant pressure of 30.0 atm and releases 58.0 kJ of heat. Before the reaction, the volume of the system was 9.00 L.
25g of a hydrocarbon undergoes complete combustion leading to the formation of 77 g of CO2. What is the % of carbon in the hydrocarbon?
Draw the structure of methyl red, and explain why it absorbs in the visible region of the spectrum. using resonance, explain why the acid form has a wavelength of max absorption at longer wavelength
The 20 mL of water added to the Erlenmeyer flask is to be previously boiled, deionized water. Since water does absorb CO2 from the atmosphere and since CO2 dissolved in water causes it to be slightly acidic,
If 545 mL of oxygen gas is collected at 21ºC and 754 mm Hg, what is its volume at STP?
Why do you wash the ether layer with sodium carbonate? 4. Why is this experiment more expensive than the Fisher esterfication process? When is this method perferred?
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