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What do the numbers on the y-axis represent?
What does each curve on the graph represent?
Which substances show increasing solubility with increasing temperature?
Which substances show decreasing solubility with increasing temperature?
Which salt is most soluble at 10oC?
Which salt is most soluble at 60 oC?
Which salt is most soluble at 80 oC?
If you heat water to 80oC, what amount of NaCl would dissolve compared to water at 20oC?
Which salt's solubility is most strongly affected by changes in temperature?
A mass of solid aluminum is at its melting point. what is the maximum mass of this sample that can be melted by 120 kJ of heat? ( Cp=0.900J/gc ; Hfus= 35.7 KJ/g
What is the pH of the benzoic acid solution prior to adding sodium benzoate? Express answer using 3 significant figures. 2. How many grams of sodium benzoate should be added to prepare the buffer?
The volume of NaOH added at the equivalence point was 5.15 mL. Calculate the concentration of the HCl solution
The binding energy of electrons to copper metal is 389.3 kJ/mol. What is the longest wavelength of light that will eject electrons from copper metal? Enter units.
If we add CO2 to increase its concentration to 0.450mol/L, what will the concentrations of all the gases be when equilibrium is reestablished
Gaseous phosphorus and chlorine combine to produce phosphorous trichloride: P2 (g) + 3Cl2 (g) -> 2PCl3 (g) ?G0= -642.9 kJ mol-1 What is the value of ?G in J mol-1 for a reaction mixture consisting of 1.5 atm P2, 1.6 atm Cl2, and 0.65 atm PCl3
Find a parametric representation for the plane that passes through the point (?2, 2, 1) and contains the vectors i + j ? k and i ? j + k.
what is the masss concentration of water vapor in the atmosphere at 25 degrees celcius when the realtive humidity is 60
125 mg of a protein is dissolved in 10 ml of water. the density of this solution is 0.789 gml. this is placed in
The density of a gas is 3.48 g/L at STP. What is its molecular weight. Select one: a. 44.6 g/mol b. 147 g/mol c. 32.0 g/mol d. 224 g/mol e. 78.0 g/mol
suppose you have a cube of copper metal that is 0.236cm on a side with a mass of 0.1206 g. if you know that each copper
determine the lime and soda ash dose in mgl as caco3 to soften the following water to a final hardness of less than
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