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What mass of oxygen gas, measured at 238 K and 3.51 atm, is required in order to release 6670 kJ of heat to the surroundings?CH4 + 2 O2 -> CO2 + 2 H2O "H = -890.3 kJ
If you wanted to prepare a solution of CO in water at 25 degrees celsius in which the CO concentration was 2.2 mM, what pressure of CO
Assuming the solution has a heat capacity of 4.18 J/°C·g and assuming no heat loss to the calorimeter, calculate the enthalpy change for the dissolution of NH4NO3 in units of kJ/mol.
carboxylic acid is burned in oxygen, producing 1.462 g of CO2 and 0.6019 g of H2O. Determine the empirical formula of the carboxylic acid.
what is the molecular formula of the compounds created by fecl3
The increase in the rate of reaction with temperature is due to A. increase in the number of effective collisions. B. decrease in activation energy.
If 450 g SO2 escaped into the atmosphere and all the escaped SO2 were converted to H2SO4. How many grams of H2SO4 would be produced in the atmosphere?
Some MF2 is dissolved in water at 25oC to make a saturated solution. (M is a mystery metal - it's identity can be ignored.) Some of the solution is removed and tested
Consider the titration of a 22.0 -mL sample of 0.110 M HC2H3O2 with 0.130 M NaOH. Determine each of the following. A. The initial pH B. the volume of added base required to reach the equivalence point in mL
Where on the modern periodic table would you probably find an element that is a dense gas at room temperature? EXPLAIN 3) What should be the most metallic element?
What percentage of the 131I released by the explosion would have remained by that time? Use the first order kinetic equation: [A] = [A]o e-kt
calculate the milliliters of 0.124 M KOH required to neutralize 46.0 mL of 0.200 M HNO2-?
For the first-order reaction 2N2O5 ---> 2N2O4 + O2, the activation energy is 106kJ/mol. How many times faster will the reaction go at 100 degrees C than at 25 degrees C?
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