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calculate the molecular weight of phosphorus if 2.3437 grams are dissolved in 50.00 grams of para-dibromobenzene and the solution freezes at 81.35 degrees C. What is the molecular formula for phosphorus?
Molecular mass = ? and Molecular formula = ?
What is the expected freezing point of an aqueous solution of 2.62 kg of nitric acid, HNO3 , in a solution with a total mass of 5.91 kg? Assume that the nitric acid is completely ionized.
How many moles of Fe(NO3)3 are required to prepare a 354.6 mL solution that is 9.737 moles/liter of NO3-?
A 10.0 g sample of krypton has a temperature of 25°C at 575 mm Hg. What is the volume, in milliliters, of the krypton gas?
What is the volume of the filled balloon If the gas is used to fill a balloon, at a pressure of 0.96 atm,?
Solubility of Terpin Hydrate for Chemistry Students, what is the structure of terpin hydrate and is it more soluble or less than starting material?
An unknown sample of gas was put into a jar with a sample of nitrous oxide gas. The density of the gas is 1.098 g/L at 25 degree celcius when the atmospheric pressure is 756 torr.
(heatcapacity of water : 4.184 j/g/k) if the final temperature of the system is 30c, what is the specific heat capacity of the alloy
when methane CH4 reacts with oxygen gas O2, water and carbon dioxide are formed. if 25.0 liters of oxygen reacts at 125.0C and 2.00 atm with 22.00L of methane initially
the wavelength of the emitted photon corresponds to the difference in energy between the two energy levels. What were the principal quantum numbers of the initial and intermediate excited states involved?
Carryout the following conversions. Report your answer to the correct number of significant figures
The pressure of 3.0 L of an ideal gas in a flexible container is decreased to one-sixth of its original pressure, and its absolute temperature is decreased to one-ninth of the original. What is the final volume of the gas?
A layer of iron(III) oxide forms on the nail, increasing the nail's mass. How much oxygen has reacted with the iron if the mass of the nail has increased to 5.89 g?
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