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The density of liquid water at 0 degrees celsius is 0.9987 grams per centimeter cubed; the density of ice at the same temperature is 0.917 grams per centimeter cubed. calculate the volume of both at 0 degrees celsius and 100 grams.
During evaporation, molecules escape from the surface of a liquid and enter the gas phase. This physical change requires an energy input: a molecule cannot become gaseous unless it has sufficient energy to break free of its interactions with neigh..
Assume that the specific heat of the substance at P=25 bar is temperature independent and equal to c_p=4.20 kJ/kg*K. Sketch the P-v and T-s diagrams of the cycle.
Comment on whether these are made of the same materials or not, and explain your response. The density is different in each, so they are made of different materials.
The small bubbles that form on the bottom of a water pot that isbeing heated (before boiling) are due to dissolved air coming outof solution.
The equilibrium constant for this reaction at 1400K is 4.7. A mixture of reactants and products at 1400K contains 0.035 M H2O, 0.050 M CH4, 0.15 M CO, and 0.20 M H2
The standard molar enthalpy change for this reaction is -1.3MJ. What is the enthalpy change when 6 moles of octane are combusted?
What is the boiing point for each compound?
Assuming it is composed entirely of 206Pb, 207Pb and 208 Pb and the percentages of the two lightest isotopes are equal, calculate the relative percentages of these isotopes in the natural element.
Consider the reaction: Mg(s)+Fe2+(aq) -> Mg2+(aq)+Fe(s) at 63 degrees celsius, where [Fe2+] = 3.50M and [Mg2+] = 0.310M. The reaction quotient, Q, for the cell is 8.86x10^-2. The temperature, T, in kelvins is 336K.
whats the ph of a solution of 1000 mg of vitamin C (176.1 g/mol) in water (Ka = 8*10^5) diluted to 254 mL
what is the molarity of HCl in a solution prepaired by dissolving 18.25 gm HCl in 200 gm ethanol, if the density of solution is 0.86 gm per mm
Explain the purpose of adding 6 M HCl to the aqueous layer with sodium benzoate. Draw the reaction between sodium benzoate and HCl.
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