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Beaker A contains 100.0g water heated to 10C. Beaker B contains 100.0g water heated to 20C.The contents of the two are mixed. What is the final temperature of contents? Assume no heat as lost.
Calculate the mole fraction of each component in the resulting mixture after oxidation assuming that the H2O is present as a gas
The unbalanced equation for the reaction is... BrO3^-(aq) + Sb^3+ (aq) ---> Br^-(aq) + Sb^5+ (aq) Calculate the amount of antimony in the sample and it percentage in ore.
what is the energy difference between the heats of formation you calculated for carbocation A and B?
A voltaic cell employs the following redox reaction: Sn^2+(aq)+ Mn(s)--> Sn(s) + Mn^2+(aq) Calculate the cell potential at 25 under each of the following conditions.
calculate the pH of a buffer solution made by adding 10.0g of anhydrous sodium acetate (NaC2H3O2) to 100 ml of 0.100M acetic acid. sume there is no change in volume on adding the salt to the acid.
Write the net redox reaction.
a buffer solution was made to have 1.4M HF and 1.10 M NaF. If .1 moles of NaOH are added to 1.00 L of the buffer, what will be the pH? Assume the volume remains constant. Ka of HF = 7.2E-4.
what is the maximum kinetic energy of a photo electron ejected from cesium by 555nm light? note that if the wavelength of the light used to irradiate the cesium surface become longer than 600 nm, no photoelectrons are emitted.
The resulting W3 was transferred to 500.0 mL of 1.00 M HCl. A 100.00 mL aliquot of the HCl solution required 10.13 mL of 0.08840 M potassium permanganate (KMnO4) to reach the purple endpoint
The half equivalence point of a titration occurs half way to the end point, where half of the analyte has reacted to form its conjugate, and the other half still remains unreacted.
What mass of sucrose should be combined with 452 g of water to make a solution with an osmotic pressure of 8.90 atm at 270 K?
What is the activation energy for a reaction if its rate constant is found to triple when the temperature is raised
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