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1)Determine melting point--Why would you do a mixture melting point? 2)Determine melting point-What signifies the beginning and end of the melting range? 3)Solubility -How does miscibility relate to solubility?
The solubility of magnesium phosphate at a given temperature is 0.385 g/L. Calculate the Ksp at this temperature.
a cylinder of compressed gas has a pressure of 4.882 atm on one day. the next day the same cylinder of gas has a pressure of 4.690 atm, and its temperature is 8 degrees celcius. what was the temperature on the previous day?
Assuming that the temperature is 293K and using Redlich-Kwong equation of state, calculate the volume of ambient pressure (1 Bar) nitrogen that can be compressed into the cylinder.
what is the total pressure in of the mixture after it is placed in a container one-half the volume of the original
Calculate the pH of a solution formed by mixing 65-mL of 0.22M NaHCO3 with 75-mL of 0.15M Na2CO3.
suppose that coal of density 1.5 gcm3 is pure carbon. it is in fact much more com- plicated but this is a reasonable
certain temperature and pressure, one liter of CO2 gas weighs 1.85 g. What is the mass of one liter of CH4 gas at the same temperature and pressure?
what is the balanced net ionic equation for the reaction below in acidic solution? enter the coefficient for each
A solution is initially 0.050M in acetate, CH3COO- (Kb = 5.6 x 10^-10). 10.0mL of 0.10 M HCl is added. The Ka for the conjugate weak acid of CH3CHOO- is 1.8 x 10^-5. Calculate the pH for this solution at equilibrium.
A catalyst has a avoid fraction of 0.40, an internal surface area of 180 m2/g and a pellet density of 1.40 g/cm3. Estimate the effective diffusivity of thiophene with hydrogen
How do you make a supersaturated solution. How is this different than a "saturated" solution
Is 373 K a high temperature? Some thermodynamic principles only hold at "high temperature". How is "high temperature" defined
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