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A sample of a gas weighs 2.006 g and has a volume of 1060.0 mL at 795.0 torr and 32.0 degrees Celsius. What is its molar mass?
Use the thermodynamic data in Appendix B to calculate the standard cell potential and the equilibrium constant at 25°C for the cell reaction in a direct methanol fuel cell
Write a balanced thermochemical equation for the reaction with an energy term in kJ as part of the equation.
The mass fraction of liquid phase of the substance is 60%. What are the pressure, mass density, internal energy and enthalpy of the entire system?
A mechanic in an automotive repair shop is exposed to the following carbon monoxide levels over an 8 hour shift.
what is the final temperature of the mixed solution? The heat of neutralization is -56.2 kJ/mol. Assume the density and specific heat of the solutions are the same as those for water.
What is the FORMULA for the limiting reagent? c.What amount of the excess reagent remains after the reaction is complete? IN GRAMS
The rate constant for a certain reaction is = 2.90×10?3 . If the initial reactant concentration was 0.500, what will the concentration be after 19.0 minutes?
Suppose that 0.3 g of AlOOH (FM 59.99) plus 150 mL of 3M KOH are diluted to 1L to give the same species produced by Al(OH)3. Write mass balance equations for aluminum and potassium.
write the structural formulas for the two 2 chloro-isomers that can be formed from 2-methylpropane(isobutane)
A substance has a molar extinction coefficient of 2.4x104cm-1M-1 and an absorbance of 0.10 What is the concentration of this substance in a cuvette with a 1.0 cm path length.
A testing facility found that 8.35*10^23 molecules of carbon dioxide were produced when a sample of octane was burned in air. If this combustion process is known to produce an 86.7% yield, how many grams of octane were in the sample?
calculate the mass of magnesium that is required to produce 35.8ml of hydrogen gas at 28°c and a barometric pressure of 745 mmHg when collected over water?
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