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Suppose you burn 10 g Octane C8H18 in a very large container with a noveable piston. Assuming a temperature of 500 K and expansion against 1. atm of pressure, how much work, in joules, can be done by the system if the octane is completely converted to carbon dioxide and water vapor. What will the enthalpy change be for the process
The density of lead is 11.3 g/ml. The water level in a graduated cylinder initially at 220mL rises to 297mL after a piece of lead is submerged. What is the mass in grams of the lead?
how many grams of NO are required to produce 145 g of N2 in the following reaction? 4NH3+6NO-- 5N2+6H2O
How is the rate of consumption of O2 related to the rate of consumption of NH3? (b) How is the rate of formation of NO related to the rate of consumption of NH3? (c) How is the rate of formation of H2O related to the rate of consumption of NH3?
Calculate the minimum energy that a bird of mass 25 g must expend in order to reach a height of 50 m.
must be added to obtain iced tea at 11.5 C? The specific heat of the tea is 4.18 J/(g*C), and delta H for ice is +6.01 KJ/mol.
How do the enthalpy of dissolution, the crystal lattice energy, and the solvation energy of the two salts relate to these experimental observations?
(a) How many mL of KOH will it take to reach the equivalence point? (b) Calulate the pH at the equivalence point. The Ka of HClO is 3.8x10^-8
Determine how much of each type of solution must be used to fill the prescription and Special eye drop solution for a glaucoma patient must have a 2% active ingredient, a pharmacist is to prepare 15ml of it but the he has 10% solution & 1% solution..
Determine the mass of the liquids in grams if this liquid is added to the beaker the combined mass becomes 238.254 grams? Given that the mass of beaker=225.08 g?
The standard free energy of formation of gaseous hydrogen iodide is 1.30 kJ/mol at 25°C. Find Kp for the reaction 2HI(g) -> H2(g) + I2(s) at this temperature.
a hydrocarbon with an empirical formula CH2 has a density of 1.88 grams per liter at 0 degress C and 1 atm. What is a possible formula for the hydrocarbon?
HCL is a significant component of gastric juice. what is the concentration of chloride ion in gastric juice at pH=1.27?
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