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The heat of fusion of sodium metal is 630cal/mol. The melting point of sodium is 98 degrees celcius. How much heat is absorbed by sodium when 800 grams os solid sodium metal become liquid at 98 degrees celcius?
explain in detail the steps and the energy involved in each step for the conversion of bromine gas and lithium solid to lithium bromine solid.
calculate the PH of a buffer solution prepared by dissolving 21.5 g benzoic acid and 37.7g sodium benzoate in 200.0 mL of solution?
what is the value of delta G at 25 C for this reaction
a sample of H2O with a mass of 46.0 grams has a temperture of 100 c. how many joules energy are necessary to boil the water
Calculate the amount of heat required to heat a 3.8kg gold bar from 27 degree celsius to 63 degree celsius.
The solubility of CaSO4 in pure water at 0oC is 1.13 gram(s) per liter. What is the value of the solubility product.
When o-phthalaldehyde (1-2-benzenedicarbaldehyde) is treated with KOH, and the reaction mixture is acidified, a single neutral product, isomeric with the starting material
Determine the extent of reaction and amounts of B & Z and A reaction having time independent stoichiometry follows the equation
A 26.0-g sample of ice at -11.0°C is mixed with 123.0 g of water at 90.0°C. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
Calculate the current strength needed to vaporize 12 g of compound X (Mw = 180.16 g/mol and a molar enthalpy of vaporization of 106.4 kJ/mol) in 30 seconds using a 16 volt battery.
A solution is made by mixing 15.5 g of NaOH and 73.0 mL of 0.150 M HNO3. Calculate the concentration of OH- ion remaining in solution.
An unknown salt is either NaF, NaCl or NaOCl.When 0.050 mol of the salt is dissolved in water for form 0.500 L of solution, the pH of the solution is 8.08. What is the identity of the salt?
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