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An amount of 0.100L of methanol (CH4O, density is 0.792 g/mL) is added to 0.900 L of pure water. Compute the molality and molarity of methanol after mixing.
45.0g og magnesium carbonate is added to water to prepare a 250.0mlsolution. 15.0ml of this solution has 50.0ml of
A cylinder of propane gas at 25oC has a volume of 32.0 liters. The pressure of the gas in the cylinder is 9 atm. To what temperature (in oC) must the gas be heated to increase the pressure by 2 atm? Assume ideal behavior
Calculate the heat produced by a 100-Watt lamp in one day. If this heat was utilized to heat one liter (~ 1 kg) of water at 25 0C, what will be the final temperaute
The solution to Equilibrium constant, A certain gas mixture held at 395C has the following initial partial pressures: P(Cl2) = 351.4 torr; P(CO) = 342.0 torr and P(COCl2) = 0.
determine at what pressure will pure H 2 O start to boil if its temperature is seventy five degree Celsius
A balloon is inflated with 0.2494g of helium to a pressure of 1.26 atm. If the desired volume of the balloon is 1.25L, what must the temperature be in degreeC
Explain the hazards inherent in an experiment that involves both flame drying and ether, and tell how best to avoid them.
Presume you were dissolving a metal such as zinc with hydrochloric acid. Explain how would the particle size of the zinc influence the rate of its dissolution
40.0L of H2 at 850mmHg and 75.5 degrees celsius is reacted with an excess of I2. What mass of HI is formed? H2(g) + I2(g)--> 2HI(g)
Write a balanced equation showing one mole of this liquid compound combusting inO2 (gas) to produce CO2 (gas) and H2O (liq).
When 0.250 grams of a polymer were dissolved in 22.9 mL of benzene at 21.6 degrees C, the osmotic pressure was found to be 0.044 atm. Calculate the molar mass of the protein.
When you are calculating absorbance, and you have Abs/Time, are there units in the final answer. Or would there be no units. We are assuming Absorbance has no units, but does it make sense for the final answer, the rate of reaction to be in second..
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