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Rolls of aluminum foil are 300mm wide and 0.013mm thick. Define what maximum length of aluminum foil can be made from 0.87kg of aluminum? d(aluminum)=2.70 g/cm3)
What is the pressure in atmospheres inside a container of gas connected to a mercury-filled open-end manometer when the level in the arm connected to the container is 28.0cm higher than the level in the arm open to the atmosphere and the atmospher..
What is the solubility of Ca(OH)2 under these conditions. What is the Ksp for Ca(OH)2 under these conditions
Calculate the amount of solute in g needed to prepare 431.5 g of 8.85 %(m/m) LiNO3 solution.
Find the concentration of calcium ions in a solution made by adding 3.50 g of calcium fluoride to 750. mL of 0.125 M NaF. [For CaF2, Ksp = 3.95 ? 10-11.]
The haloform reaction is executed in this experiment to synthesize benzoic acid from a methyl ketone, acetophenone. Provide an explanation for the following steps in the procedure. a) Why is acetone added at the end of the reaction
Calculate the concentrations of all species in a 1.73 M Na2SO3 (sodium sulfite) solution. The ionization constants for sulfurous acid are Ka1 = 1.4× 10-2 and Ka2 = 6.3× 10-8.
at room temperature 20 degrees celsius milk turns sour in about 64 hours. in a refrigerator at 3 degrees celsius milk
What is proton pump, proton matrix, proton gradient, and proton motive force? Please give simplies answer as possible.
A beaker with 130 mL of an acetic acid buffer with a pH of 5.00 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 7.20 mL of a 0.370 M HCl solution to the beaker. How much will the pH..
the mass spectrum determined the molecular weight of mehtyl salicylate to be 125.15 g/mol. What is the molecular formula of methyl salicylate?
Draw a diagram of the electrochemical cell, labeling all electrodes and solutions. What is the pH in the Pt | H+ | H2 half-cell. What is the value of the equilibrium constant for the reaction occurring in this cell
a 3.140 molal solution of nacl is prepared. how many grams of nacl are present in anbspsample containing 3.000 kg of
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