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The heat of fusion of water is 6.008x10^3 J/mol at its normal melting point of 272.15K. Calculate the freezing point depression constant Kf.
What is the barium ion concentration in a saturated barium fluoride solution made by adding solid BaF2 until no more dissolved
write a plausible chemical equation to interpret at the atomic level what you observed in the reaction of Lysol Toilet Bowl Cleaner with 0.1 M AgNO3?
Calculate the lattice energy (kJ/mol) of the hypothetical ionic compound MX2 from the information given below. IE1+ IE2 (M) = 1,487 kJ/mol M(s)
Cesium(Cs) is used extensively in television cameras and in photocells because it has lowest ionization energy of all the stable elements.Determine the maximum kinetic energy of a photo electron ejected from cesium.
how many grams of dry nh4cl need to be added to 2.10l of a 0.500 m solution of ammonia to prepare a buffer solution
a 150.0 g sample of metal at 80 c is added to 150.0g of H2O at 20 c. the temperature rises to 23.3 c. assuming that the calorimeter is a perfect insulator, what is the specific heat of the metal?
CO2 properties: appearance, reaction with limewater, reaction with flame, behavior with water. If positive observation then write a balanced equation.
A 0.750 g of lye is dissolved in water and titrated with 32.0 mL of 0.500 M HCl. What is the percent purity of the lye sample
What is the volume of a unit cell of this metal? 4.What is the edge length of a unit cell of Fe?
What is the volume of 455 mL of oxygen gas at 67.0°C and 300. mm Hg if the conditions are adjusted to 890. mm Hg and 107°C? Assume the amount of gas is held constant.
The resulting W3 was transferred to 500.0 mL of 1.00 M HCl. A 100.00 mL aliquot of the HCl solution required 12.26 mL of 0.08855 M potassium permanganate (KMnO4) to reach the purple endpoint.
Ethanol melts at -114 celcius and boils at 78 celcius . The enthalpy of fusion of ethanol is 5.02 KJ/mol , and its enthalpy of vaporization is 38.56 KJ/mol.
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