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What colligative properties are displayed by each of the following situations?
a) Antifreeze is added to a car's cooling system to prevent freezing when the air temperature is below 0 degrees Celcius.
b)Ice melts on sidewalks after salt has been spread on them.
A 0.2 036 g sample containing only BaCl 2 and NaCl is dissolved in 5 0.0 mL of distilled water. Titration wi th 0.1410 M AgNO 3 requires 19.46 mL to reach the endpoint
Write the chemical equation describing solubility equilibrium and the solubility product constant expression for Cu(IO3)2(s) and Ba3(PO4)2(s)
Calculate the molarity of chloride ions when HCl is added to Co(NO3)2 ? (this is the cobalt complex and chloride experiment)
A deep-sea diver uses a gas cylinder with a volume of 10.0 {\rm L} and a content of 51.8g of {\rm O}_{2} and 33.6g of {\rm He}. Calculate the partial pressure of each gas and the total pressure if the temperature of the gas is 20^\circ C.
determine the molecule weight of the liquid and the density of the vapor under these condition?
Explain why copper (II) and iodide are incompatible in acid media and compatible in ammonia media
A mixture of sand and iron pieces weighs 53.29 g. Using a magnet, the iron is removed and weighs 15.63 g. What is the percent composition of sand in the mixture?
The temperature of the ideal gas in the container shown is 300 K. The gas occupies a volume of 1.27 m3. What would be the volume of the gas if its temperature were decreased to 100 K? No blocks are added to or removed from the lid.
How many grams of aluminum must be used to produce 5.00 grams of hydrogen gas?
The atmospheric pressure 4.The volume for the vapor to occupy above the liquid 5.The temperature of the liquid
Calculate the mass percent (m/m) for the solute in each of the following solutions: Express the answer using 2 sig figures.
write the rate law for each elementary reaction in the mechanism. D) if the first step is slow and the second one is fast, what rate law do you expect to be observed for the overall reaction.
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