General Chemistry Answers

Calculate the △G° at 298 K for the following reaction. Show your work.

Fe2O3 (s) + 13CO (g) = 2Fe(CO)5(g) + 3CO2(g)

-824.2 -110.5 -733.8 -393.5

△H° (kJ/mol)

87.4 197.6 445.2 213.6

△S° (J/mol x K)

Titanium is a transition metal used in many alloys because it is extremely strong and lightweight. Titanium tetrachloride is extracted from titanium oxide using chlorine and coke. What mass of C is needed to react with 1.25 mol of Tio2?

The combustion of ethane proceeds according to equation 2C₂H₆ + 7O₂ → 4CO₂ + 6H₂O. The enthalpy change for combustion of 1 mol of this hydrocarbon equals –1600.0 kJ/mol. Use the following from Hess's law and calculate the enthalpy of formation of 1 mol of ethane, if ΔHf (CO₂) = −393.5 kJ/mol, ΔHf (H₂O) = −241.8 kJ/mol, ΔHf (O₂) = 0.

How do I calculate the Ksp, Delta G, and Delta S from my data table? The experiment aims to find the solubility curve of potassium nitrate dissolving in water. For example, when 2 grams of KNO3 dissolve in 5 ml of H20, crystals reappeared at 25° celsius.

How many grams of water can be made when 17.5 moles of HNO3 are consumed

Balance the reaction for the combustion of propane:

C3H8+?O2→?CO2+?H2O

If I start with .713 moles of hydrogen and excess bromine, how many moles of hydrogen bormide can I make?

Gas X has a molar mass of 100 g/mol and Gas Y has a molar

mass of 32 g/mol. How much faster or slower does Gas Y

effuse from a small opening than Gas X if they are at the same

temperature?

800.0 mL of Helium is at 55.0 ^\circ

^∘C and 0.64 atm. What will the pressure be if the temperature changes to 100.0 ^\circ

^∘C if the volume remains the same?

In a Coulometric redox titration, we have 100 mL water with some KCl from salt bridge in one beaker, and 100 mL water with some KCl and 1 mL of 0.02 M CH3COOH in another beaker. 1.5 amps, 10 V, 500 sec until color change.