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If certain car has a rated mileage of 30.0 miles per gallon, how many liters of carbon dioxide gas is generated when the car hasbeen driven a distance of 16.0 miles? Assume a temperature of25.0 oCand an atmospheric pressure of 1.00 atm and that the car only burns octane. Use the infromation given is quetion 1 and the fact that one mole of CO2 underthe given conditions has a volume of 24.5 liters.
What is the wavelength (in meters) of photons with the following energies? In what region of the electromagnetic spectrum does each appear
What is the pH of a saturated solution of Ba(OH)2 at 25oC? For Ba(OH)2, Ksp=5.0x10-3.
Calculate the heat energy released when 10.9 g of liquid mercury at 25.00 °C is converted to solid mercury at its melting point.
Consider the combustion reaction: CH4(g) + O2(g)= CO2(g) + H2O(l) is this an exothermic reaction. If 100g of CH4 is burned, calculate the heat exchange (balance the equation).
The specific heat of a certain type of metal is 0.128 J/(g x C). What is the final temperature is 305 J of heat is added to 63.8 g of this metal initially at 20.0 C
Octane ratings are assigned to gasoline mixtures based on their ability to prevent knocking relative to isooctane. Estimate the energy released during the combustion of 1.00 mol of pure isooctane.
-Determining the molar enthalpy/heat of a reaction, and then how much heat was actually given off in a specific reaction -Finding the increase in temperature of a substance given its gain or loss of heat energy
For H3PO4, a tripotic acid, Ka1 = 7.1 × 10-3, Ka2 = 6.3 × 10-8, and Ka3 = 4.5 × 10-13. What is the pH of a solution which contains 0.200 mol of K2HPO4 and 0.300 mol of Na3PO4 per liter of solution?
Consider a reaction in which two reactants make one product (for example, consider the unbalanced reaction A + B ? C) You know the following:
The hydrogen gas generated is collected over water at 25.0°C. The volume of the gas is 295 mL measured at 1.00 atm. Calculate the number of grams of sodium used in the reaction. (Vapor pressure of water at 25°C = 0.0313 atm.)
A sample of helium gas occupies a volume of 24.9 mL when meassured at 20.9 degree C and 527 torr. What is the volume of the gas in mL if the temperature is increased to 99.8 degree C and the pressure remains constant
Fumaric acid, a diastereomer of maleic acid, requires a much higher temperature before it dehydrates; when it does, it also yields maleic anhydride.
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