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A sample of commercial concentrated hydrochloric acid is 11.8 M HCl and has a density of 1.190 g/mL. Calculate (a) the mass percentage, (b) molality and (c) mole fraction of HCl in concentrated hydrochloric acid.
Molar Mass(HCl) = 36.46 g/mol
At 100 degrees C, the vapor pressure of water, methanol, and ethanol are 760, 2625, and 1694 torr, respectively. Which counpound has the highest normal boiling point.
The heat of formation of Al2O3(s) is -1669 kJ/mol. Calculate the heat evolved when .267 g of Al burns in oxygen.
The solubility of a gas in water is 0.22 g/L at 20 kPa of pressure. What is the solubility when the pressure is increased to 115 kPa
How could you ascertain wheter the alcohol or the carboxylic acid furnishes the hydroxyl group that appears in the molecule of water
determine the initial concentration - Constant rate is 3.20×10-4 M/s for a zero-order reaction. concentration has dropped to 9.00×10-2 M after 60.0 seconds
How many peaks would you expect to find in the NMR spectrum of caffeine? What characteristic absorption bands would you expect to find in the infrared spectrum of caffeine?
Determine if the concentration of formaldehyde and methanol as measured in water will convert to its relative organic acids? If there is a measured concentration of formaldehyde and methanol in a 1000L solution of water at temperature = 180 degrees..
Ammonia, NH3, is a stronger ligand than Cl- but weaker than CN-. Complete the balanced equations for the reactions that are predicted to occur
If the barometric pressure is 784 torr and the experiment is carried out at 25 oC, what is the pressure of the gas collected?
How much energy in kilojoules is required to convert 260 mL of water at its boiling point from liquid to vapor?
The first ionization energy of bismuth is Ei1=+703 KJ/mole. What is the longest possible wavelenghth of light that could ionize an atom of bismuth?
When hcl and nahco3 are mixed together, a chemical reaction takes place in which a gas is one of the products. What is the molar mass of a sample of gas
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