Description Consider the following aqueous solution how do you figure it out 0.15 m CaCl2 0.25 m CsI 0.20 m caffeine (a nonelectrolyte) 0.10 m K3PO4 Which solution has the highest freezing point? Which solution has the lowest vapor pressure of water?
Description If a 55 ?gram laboratory mouse is exposed to 21.4 rad of radiation, how much energy was absorbed by the mouse's body? Express your answer using two significant figures.
Description Calculate the solubility of PbBr2 (a) in pure water and (b) in a solution in which [Br-] = 0.296 M. Solubility in pure water = M Solubility in 0.296 M Br- = M
Description A bomb calorimeter has a heat capacity of 2.47 kJ/K. When a 0.105-g sample of a certain hydrocarbon was burned in this calorimeter, the temperature increased by 2.14 K. Calculate the energy of combustion for 1 g of the hydrocarbon.
Description 1)4.31 grams of zinc react with sulfuric acid balanced chemical equation? how many grams of zinc sulfate would be formed? 2)Copper reacts with sulfuric acid to produce copper(II) sulfate, sulfur dioxide, and water balanced equation? how many grams of copper(II) sulfate would be formed from 2.25 moles of copper how many liters of sulfur dioxide has would be formed from 25.0 grams of sulfuric acid? how many molecules of water would be produced when 8.35*10^22 molecules of sulfur dioxide
Description How would you expect the following axial ligands to affect (increase or decrease) the reduction potential for the Fe(III/II) couple of a heme group if they replace an aquo ligand? Explain why in each case. carbon monoxide (CO) azide (N3-) cysteine
