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What is the morality of bleach?
What is the fraction of Nacl in the bleach?
At what temperature would a 1.10 m nacl solution freeze given that the vanot hoff factor for nacl is 1.9 ? Kf for water is 1.86.
A 0.050 M solution of ALCl3 had an observed osmotic pressure of 3.85 atm at 20 c. calculate the vanot hoff factor I for ALCl3.
The molar heat of vaporization of ethanol is 39.9 kJ/mol and the boiling point of ethanol is 78.3°C. Calculate ?S for the vaporization of 0.50 mol ethanol.
Calculate the molarity of a solution by adding 44.9mL of concentrated perchloric acid (70.5% by mass, density is 1.67g/mL) to some water in a volumetric flask, then adding water to the mark to make exactly 500 mL solution.
The energy difference of 3.8 kJ/mol between gauche and anti butane corresponds to an equilibrium constant, Keq, of approximately 1.9. Calculate the percentage of each conformer at equilibrium.
You are given a small piece of gold colored material and want to determine if it is actually gold. Using the Archimedes' Principle, you find that the volume is 0.40 cm3 and the mass is 6.0 g. What conclusions can you reach from your simple density..
How many mmoles of ammonia would have to be added to 300. mL of 0.10 M cupric sulfate in order to reduce the Cu2+ concentration to 1.0 x 10-8 ? Kf for [Cu(NH3)4]2+ = 5.0 x 1012 Assume no change in volume.
how many grams of precipitate are formed if 0.27 grams of barium nitrate is mixed with 0.2 l of 0.8 m potassium
Based on the sign of E°cell, classify these reactions as spontaneous or nonspontaneous as written. Assume standard conditions. Al3+(aq) + 3Na(s) ---->Al(s) +3Na+(aq) 3Fe2+(aq)+2Cr(s)---->3Fe(s)+2Cr3+(aq) Zn2+(aq) + Sn(s)---->Zn(s) + Sn2+(aq)
Calculate the ionic strength of a solution that is made .1222 M AgNO3, plus .0215 M MgCl2, plus .140 M AlCl3
What is the concentration of SO2. 2SO2(g)+O2(g)===2SO3(g) Keq=3.94 at 600 degress celsius
Select the element with the more negative more exothermic electron affinity from each of the following pairs.
A gamma ray has a frequency of 3.5 x 1019Hz. Determine the wavelength of this radiation in nm and the energy of a photon of this radiation.
Write the rate expression for the reaction C) Calculate k for the reaction D) When [S2O8 2-] = 0.105 M and [I-] = 0.0875 M, what is the rate of the reaction at the temperature of the experiment?
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