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the combustion of a fuel is found to raise the temperature of 500cm^3 of water by 20degrees celecius. how much energy is released by the fuel?
The solution to Equilibrium constant, A certain gas mixture held at 395C has the following initial partial pressures: P(Cl2) = 351.4 torr; P(CO) = 342.0 torr and P(COCl2) = 0.
how many liters of fluoridated drinking water would a 70 kg person have to consume in one day to reach this toxic level? How many kg of sodium floride would be needed to treat a 7.49x10^6 -gal reservior?
What is the mass of aluminum metal that reacts to give 1 g of hydrogen gas?
What mass (in grams) of steam at 100°C must be mixed with 375 g of ice at its melting point, in a thermally insulated container, to produce liquid water at 66.0°
calculate the theoretical yield of TiO2. If the percent yield of the reaction is 77.6%, how many grams of TiO 2 are actually formed?
The specific heat cacpacity of solid copper metal is 0.385/Jg-K. How many joules of heat are needed to raise the temperature of a 1.55-kg block of copper from 33.0 0C to 77.5 0C
calcium and the human body normally contains 6 quarts of blood, what mass of calcium (in grams) will be found in the total blood volume?
A 4.70 g nugget of pure gold absorbed 255 J of heat. What was the final temperature of the gold if the initial temperature was 24.0°C? The specific heat of gold is 0.129 J/(g·°C).
A solution is prepared by dissolving 75.0 g HCl(g) in enough water to make 350.0 L of solution. The ph of this solution is?
Consider 48.5 mL of a solution of weak acid HA (Ka = 1.00 * 10-6), which has a pH of 4.350. What volume of water must be added to make the pH = 6.000?
calculate the concentrations of all species in a .890 m sodium sulfite solution. the ionization constants for sulfurous acid are ka1= 1.4x10^-2 and ka2=6.3x10^-8
what is the relationship between the dipole moment and the bond moment? how is it possible for a molecule to have bond
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