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A saturated solution of barium chloride at 30C contains 150 g water. how much additional barium chloride can be dissolved by heating this solution to 60C?
Calculate the molar mass of the unknown. Assume that the molal freezing point depression constant of water is 1.86C kg/mol and that the freezing point of water is 0.00C.
For the following battery: Cd(s) | CdCl2(aq) || Cl-(aq) | Cl2(l) | C(s) Write the reduction half-reaction occuring at the C(s) electrode. (Include physical states of reactants and products.) From which electrode will electrons flow from the batter..
Give the number of atoms of the specified element in a formula unit of each of the following compounds, and calculate the molecular (formula) mass
Explain how to prepare 0.250 L of a 0.500 M CuSO4 solution. 1. Measure out 0.500 moles of CuSO4 solid 2. Measure out 20.0 g of CuSO4 solid 3. Measure out 0.500 moles of CuSO4 solid and add water until a volume of 1.0 L is reached 4
What type of mineral source (sulfide, oxide, halide, phosphate, silicate, carbonate, etc) are the following elements typically isolated from? Write the chemical formula for the source mineral (for example: silver, typical mineral source = silver s..
What mass of calcium can be produced by this process if a current of 6200 {\rm A} is applied for 35 {\rm h}? Assume that the electrolytic cell is 69 % efficient. also What is the minimum voltage needed to cause the electrolysis
what mass of cesium bromide must be added to .500 l of water d 1.00gml to produce a 0.687 m solution? what are the mole
the molar enthalpy of vaporization of propane is 15.7 kjmol. at 1.00 atm pressure propane boils at 231.1 k. at what
Predict whether a precipitation reaction will occur when aqueous solutions of the following substances are mixed:
At this temperature, applying about 10,000 bar of pressure can dentature a protein. What is the molar volume change for the unfolding process?
The proteins are given to you as 10mM solutions in phosphate buffer. You acquire UV-Vis spectra of the solutions to compare to your unknown mixture.
The activity of a radioactive sample is the number of nuclear disintegrations per second, which is equal to the first-order rate constant times the number of radio-active nuclei present.
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