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Calculate the decomposition for this process at constant pressure and 25o C: CaCO3(s) = CaO(s) + CO2 look up the standard enthalpy formation of the reactant and product
Chlorine is widely used to purify municipal water supplies and to treat swimming pool waters. Suppose that the volume of a particular sample of gas is 8.70 l at 895 torr and 25 Celsius. How many grams of Cl2 are in the sample? what volume will the..
An endothermic chemical reaction with ?E = +41 kJ/mol has an activation energy of +95 kJ/mol. What is the activation energy for the reverse reaction?
The air pressure in the tires of an automobile is adjusted to 37 psi in SanDiego, where the air temp is 68F. The air in the tires is at the same temp as the atmosphere
A mixture of ammonia and oxygen is prepared by combining 0.260 L of NH3 (measured at 0.700 atm and 21°C) with 0.170 L of O2 (measured at 0.740 atm and 49°C). How many milliliters of N2 (measured at 0.740 atm and 100. °C) could be formed if the fol..
A sample of gas with a mass of 1.58 occupies a volume of 941 at a pressure of 753 and a temperature of 16. What is the molar mass of the gas.
What volume of 0.150 mol /L Ba(OH)2 is needed to neutralise 476 mL of 0.178 mol/L HCl?
Draw the organic product of the following reaction between (1S,3S)-1-chloro-3-methylcyclopentane and methanethiol in the presence of sodium hydroxide.
Calculate the pH of this buffer solution after the addition of 0.010 moles of solid sodium hydroxide to the buffer
When 5.19g of NaCl is dissolved in 85.0 mL of water at 22.2 degrees Celsius, the temperature of water drops by 6.6 degrees Celsius. Calculate the heat of solution of NaCl.
How many grams of methane [CH4 (g)] must be combusted to heat 1.19 kg of water from 25*C to 60*C, assuming H2O (l) as a product and 100% efficiency in heat transfer?
for each formula unit of sodium decahydrate: Na2SO4 * 10H2O, a) how many atoms of each kind are present? B) how many water molecules would be liberated for every molecule of the hydrate that is decomposed by heating?
two moles of a gas are compressed isothermally and reversibly at 300 k from an initial volume of 10 dm3 to a final
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