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A 63.8 mL glass bulb is completely evacuated and then filled with an unknown gas to a pressure of 747 mmHg at 22 degree C. If the glass bulb gained 0.103 g in mass, what is the molar mass of the gas?
What mass (in grams) of NH4Cl is needed to prepare 450mL of 0.251 M NH4Cl solution?
Will the temperature of the water be greater than or less than 20 C when thermal equilibrium is reached? Calculate the final temperature
Given that the density of the gas mixture =0.312 g/L at the pressure of 0.2 atm and temperature 500 Kelvin At equilibrium. Determine the value of Kc also express your answer in units of (mol/L)?
How many grams of sulfur are required to produce 768 grams of sulfur dioxide in the following reaction: S + O2 --> SO2?
Suppose that a student collects the following spectrophotometric data to determine the relative concentrations of HMR and MR in solution:
What is the molarity of a solution made by dissolving 74.8 g of strontium perchlorate in sufficient water
What is the mass of precipitate (in Grams) that forms when 235.5 mL of 0.129 M Na2SO4 solution is reacted with excess Ba(NO3)2 solution?
determine the freezing point of this solution If 18.0 grams of a nonelectrolyte that has molar mass = 44.2 g/mol are combined with 110.0 grams of the solvent,?
Example of reducing agent mechanism, Using Curved arrows to symbolize the flow of electrons, write the mechanism for the steps involved in the conversion of 9-fluorenone
HZ is a weak acid. An aqueous solution of HZ is prepared by dissolving 0.020 mol of HZ in sufficient water to yield 1.00 L of solution
The nitro group needs to be taken off as well. I can't seem to find any reference materials on what reagrents can be used. Can you please advise?
If a few drops of water on the outside of the hot water syringe used to dispense the 5.00 mL sample into the calorimeter well for the Kcal determination fell into the well
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