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Imagine that you place a cork measuring 1.30cm x 5.50cm x 3.00cm in a pan of water and that on top of the cork you place a small cube of lead measuring 1.15cm on each edge. The density of cork is 0.235g/cm3, and the density of lead is 11.35g/cm3. Will the combination of cork plus lead float or sink.
What is the velocity of a hydrogen molecule after absorbing a photon @ 58.4 nm. What is the translational energy of the molecule in J mol-1
Use an Arrhenius plot to determine the activation barrier for the reaction. Express your answer using three significant figures. (units = kJ/mol)
Solubility Constant, Ksp of Reactant, The chemical reaction representing the soluability of AGBr is: AgBr (right and left arrow) Ag^+ +Br^-
Calculate the cell potential for the following reaction as written at 61 °C, given that [Cr2 ] = 0.826 M and [Ni2 ] = 0.0200 M. Cr(s) + Ni ^2+ (aq) --> Cr^2+ (aq) + Ni(s)
why does the color change from blue to green or yellow near the endpoint of titration when the indicator is bromocresol green
the resulting solution exerts an osmotic pressure of 829 torr. what is the molar concentration of the solution? how many moles of solute are in the solution? what is the molar mass of the solute?
zinc reacts with iodine in a synthesis reaction. determine the theoretical yield if a 125.0g sample of zinc was used.
dehydration happens when there is less water taken into the body than leaves the body.nbspabout 75 of the average adult
State the conditions under which all derivatives of benzene like chlorobenzene, benzoyl chloride and chlorophenyl methane would react with sodium hydroxide.
Two peaks on chromatogram have k1= 3.1 and k2= 4.9. column efficiency is 2000 theoretical plates. Void volume is 1mL. Calculate the resolution between these compounds.
Nickel nitrate and potassium carbonate react to form nickel carbonate and potassium nitrate. How many milliliters of 0.55M Ni(NO3)¬2 are needed to react with 85 mL of 0.25M K2CO3?
Consider 2 Al + 6 HCl → 2 AlCl3 + 3 H2 , the reaction of Al with HCl to produce hydrogen gas. This reaction has a yield of 82.5 percent. How much HCl are needed to produce 14.0 L of H2 at 351 K and 1.11 atm
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