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An 11.0 gram sample of CaCl2(s) is dissolved in 125 grams of water with both substances at 25.0°C. If the final temperature of the mixture is 39.2 °C, what is the enthalpy of the dissolution of CaCl2?
How much heat energy, is needed to convert 64.0 grams of ice at -18.0 degrees celcius to H2O at the temperature of 25.0 degrees celcius? Express your answers in kilojoules
The temperature of the H 2 O is 26.55 degree celsius. Determine how much heat is evolved per gram of fuel burned?
Consider the following reaction: SO2Cl2 (g) SO2 (g) + Cl2 (g). K = 2.99*10^-7 at 227 degrees celsius. If a reaction mixture initially contains 0.159 , what is the equilibrium concentration.
A sample of a dish from an archaeological dig gave 18 500 disintegrations per gram of carbon per day. A 1.00-g sample of carbon from a modern source gave 22 080 disintegrations per day.
Calculate the enthalpy change for converting 10.00g of ice at -25.0°C to water at 70.0°C in kJ. The specific heats of ice, water, and steam are 2.09 J/g-K, 4.18 J/g-K, and 1.84 J/g-K,.
A 2.914-g sample gypsum, a hydrated salt of calcium sulfate, CaSO4, is heated at a temperature greater than 170 C in a crucible until a constant mass is reached.
Find out the amount of energy released by this process of fission of a single U 235 atom and expree your answer in joules?
The oxide of 'N' element contains 33.33% of the element .The same element forms a chloride whose Vapour density is 59.25.
54.0 mL of a 1.40 M solution is diluted to a volume of 218 mL. A 109-mL portion of that solution is diluted using 183 mL of water. What is the final concentration.
A swimming pool contains 88,000 liters of water and it having a surface area of 5 meters by 10 meters. It is observed that when this swimming pool is heated by the Sun for six hours.
Evaluate the electronic configuration for ionization energies of Magnesium, the orbital number in which the electrons are added in phosphorus ion, and the one will lose in the ionization of Alluminium.
A cylinder is separated into two sections Y and Z by an insulating frictionless piston and sealed at both ends. Each section has two moles of an ideal gas.
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