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Four ice cubes at exactly 0 having a total mass of 55.0 are combined with 120 of water at 77 in an insulated container. If no heat is lost to the surroundings, what will be the final temperature of the mixture?
How many grams of sodium hydroxide are needed to react completely with 50.1 mL of 0.145 MCoCl2 solution?
What external pressures have moved mainstream medicine to accept alternative therapies? Have any alternative therapies been proven to work as well as standard treatments? Support your answer with information from the reading materials and/or inter..
what hybrid orbitals are used about the central atom of each of the angles.
The standard cell potential for the electrochemical reaction is 1.10V. Calculate the cell potential if the concentration of zinc ion and copper ion are 0.050M and 5.0M respectively at room temp.
170mL of an HCl solution with pH of 2.80 is added to 200mL of an HNO3 solution. The resulting pH is 1.40. What was the pH of the original HNO3 solution
At equilibrium, 0.11 mole of CO2 was present. Calculate the equilibrium constant Kc of this reaction.
Classify each reactant as the reducing agent, oxidizing agent, or neither.
The density of a 23.0% by mass ethylene glycol (C_2 H_6O_2) solution in water is 1.03 g/mL. What is the molarity of the solution?
Betty, in a hurry to finish part 2 of the experiment, did not let the NaOH solution from part 1 cool at all. She just added it to the HCL solution and took the average temperature as the initial temperature of the mixture.
The internuclear distance in NaCl(g) is 2.3606 angstrom, whereas in NaCl(s) the shortest Na-Cl distance is 2.814 angstrom. Explain why this should be so when the binding energy is larger in the crystal.
If 435 grams of water at 23 celcius abssorbs 281 kJ of heat froma mountain climber's stove at an elevation where the boiling point of water is 87 celcius
SrCO3 is a sparingly soluble salt. Using the Ksp from the appendix, a) Determine the concentrations Sr2+ and CO32- when SrCO3 is dissolved in pure water ignoring secondary reactions of Sr2+ and CO32-
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