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A professional scientist measures out eaxctly 100.00cm3 of a liquid, and finds that its mass is exactly 80.000g. What is the density (in g/cm3) of the liquid?
Solve an equilibrium problem (using an ICE table) to calculate the pH 1)a solution that is 0.13M in NH3 and 0.15M in NH4Cl 2) 185.0 mL of 0.12M C2H5NH2 with 265 mL of 0.20M C2H5NH3Cl
Solution prepared adding 50 mL HCl and 20 mL HNO3 to 300 mL water. More water added until final volume is 1.00 L. Calculate [H+], [OH-], and pH for solution.
aluminum has a face-centered cubic unit cell. if the atomic radius of aluminum is 125 pm what is the edge length of the
a 10.0l container of helium gas with a presure of 250mmhg at 0 degrees celsius is heated to give a pressure of
The rate law for the reaction 3A ? 2B is rate = k[A] with a rate constant of 0.0447 hr-1. What is the half- life of the reaction
if solubility of a particular solute is 10g100g h2o at 20 degrees c which of the following solution concentrations
the standard reduction potential for the cu2+/cu redox couple is +.34V; that for h2o/H2, OH- at a ph of 7 is -.41V. For the electrolysis of a neutral 1.0M CuSo4 solution, write the equation for the half reaction occuring at the cathode at standard..
What is their role in this reaction. In the case of this particular example that you watched, where would each of these ions have come from
A solution contains 29 g of sucrose (C12H22O11), a nonelectrolyte, dissolved in 929 g of water. What is the boiling-point elevation?
It is then restored to its original state by the extraction of heat at constant pressure. Calculate w for each step and for the total process. What values for w would you calculate if the cycle were traversed in the opposite direction?
Use the systematic treatment of equilibrium to determine the pH and concentrations of species in 1.00 L of solution contatining 0.070 lysine HL 0.055 mol aspartic acid H2A and 0.0080 mol NaOH.
A mass of mercury occupies 0.950 L. What volume would an equal mass of ethanol occupy? The density of mercury is and the density of ethanol is 0.789 g/mL.
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