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Explain an iron skillet with a mass of 0.96 kg and a copper skillet of the same mass are both at a temperature of 165.0 degrees Celsius. Explain when the skillets cool to room temperature (22.0 degrees Celsius), which skillet gives off more thermal energy (in Joules) as well as how much more energy is given off?
What is the minimum mass of ethylene glycol (C2H6O2) that must be dissolved in 14.5 kg of water to prevent the solution from freezing at -15.2 F
The solubility product of PbBr2 is 8.9x10^-6. Determine the molar solubility in 0.20M Pb(NO3)2 solution
Assuming the same mass of each, which of the following substances will have the highest temperature change if they all absorb the same amount of heat Gold
1 give an anion that can be added in solution to separatea naaq from agaqb naaq from ca2aq2 write a balanced equation
Define A solution containing 27.55 mg of an unknown protein per 25.0 mL of solution was found to have an osmotic pressure of 3.22 torr at 25.0oC. Define what is the molar mass of the protein
What is the molar concentration of the excess reactant once this reaction has finished? (40%)
unused lead nitrate to the container marked"sodium nitrate". What could the student do to get all the led ions out from the sodium nitrate?
The NH3 is a weak base (Kb = 1.8 × 10-5) and so the salt NH4Cl acts as a weak acid. Explain what is the pH of a solution that is 0.037 M in NH4Cl
calculate the mass (g) of the excess reactant after thereaction is complete e. calculate the theoretical yeild (g) of 2,2dibromopropane
Weigh 3.503g of NaC2H3O2*3H2O and add it into a 150mL beaker. Pour in 8.8 mL of 3M acetic acid. Pour in 55.6 mL of distilled water and add it to the mixture and stir the solution.
Given the two reactions: PbCl2 Pb2+ + 2Cl-, K1 = 1.80*10^-10, and AgCl Ag+ + Cl-, K2 = 1.19*10^?4, what is the equilibrium constant K final for the following reaction PbCl2 + 2Ag+ 2AgCl + Pb2+
consider a series of carboxylic acids whose general formula is ch3ch2ncooh. how would you expect the solubility of
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