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If 77.0 mL of hydrogen gasis collected over water at 50 degree Celsius and 763 mm Hg, what is the volume of dry gas at standard conditions (pressure is 1 atm andtemp is 0 degree Celsius)? The vapor pressure of water is92.5 mm Hg at 50 degree Celsius.
The net energy EN is just the sum of the two expressions above. Determine (a) the minimum bonding energy, E0, and (b) the equilibrium interionic distance, r0.
It is often possible to change a hydrate into an anhydrous compound by heating it to drive off the water (dehydration).
When MCl4(NH3)2 is dissolved in water and treated with AgNO3, 2 moles of AgCl precipitate immediately for each mole of MCl4(NH3)2. Whats the coordination number of M in the complex?
The heat capacity of liquid water is 4.18 J/g·°C and the heat of vaporization is 40.7 kJ/mol. How many kilojoules of heat must be provided to convert 1.00 g of liquid water at 67°C into 1.00 g of steam at 100°C
What is the pH of this solution? What is the concentration of the molecular species H3PO4?
How much energy must be removed from a 125 g sample of benzene (molar mass=78.11g/mol) at 425.0 k to liquify the sample and lower them temperature to 335.0 k
Exothermic Reaction. Chemical process in which system evolves resulting in heat transfer to the surroundings. Endothermic Reaction: Chemical process in which system evolves resulting in heat transfer to the system. A. Burning wood in a campfire.
Complete the following acid-base reactions. Write the net ionic form. Determine if the solution made by mixing equal amounts (moles) of these acids and bases will be acidic, basic or neutral. Explain, show relevant equations
Calculate the pH at the equivalence point in the titration of 54 mL of 0.10 M methylamine with a 0.20 M HCl solution. Ka = 4.4 X 10^-4
calculate the N12+ concentration of a solution made by mixing .020 mols of Ni(NO3)2 into 1.0 L .22 M NH3
The solution which passed through the filter was collected in a beaker and excess sodium sulfate solution was added to this beaker. 0.432 g of fry precipitate was collected from this second solution by filtration. Calculate the percent of magnesiu..
Draw the structure of diacetylferrocene. comment on the distribution of the two acetyl groups over the two aromatic rings: are they likely to be on the same ring or on different rings? Clearly explain your rationale.
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