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Instead of Calcium, oxalate ions can as well be precipitated using barium ions. Define how using barium ions instead might affect the mass of precipitate obtained. Greater? Less? Why?
The vapor pressure of water at 20.0°C is 17.5mmHg . If the pressure of a gas collected over water was measured to be 453.0mmHg . What is the pressure of the pure gas
a sample of water is examined to have two metals with mcl cd2 and al3. this water can treat with oh and the equilibrium
it takes 580. j of energy to raise the temperature of 124.5 g mercury from 20.0degc to 53.5degc. calculate the specific
Draw the resonance structures for 9-(hydroxymethyl)anthracene. Is it possible for all three rings to simultaneously have benzenoid character
The value of Kf for cyclohexane is 20.0°C/m, and its normal freezing point is 6.6°C. A mass of 1.604 g of a waxy solid dissolved in 10.000 g of cyclohexane results in a freezing point of 4.4°C. Calculate the molar mass of the solid.
How many moles of NaOH must be added to 1.0 L of 1.2 M HC2H3O2 to produce a solution buffered at each pH? a) pH=3.87 b) pH=5.24
a solution of 14. g of a nonvolatile nondissociating compound in 1.0 kg of benzene boils at 81.7 oc. calculate the
Create a pH-log concentration plot for carbonate and acetic acid for total concentrations of 10-3 and 10-4, respectively. Discuss the relative importance of the various species as a function of pH and how the plot relates to the dissociation const..
Using library resources determine if it is possible to construct a single cell battery that has a cell potential of at least 9 V. You must use realistic concentrations for full credit.
a sample of nitrogen gas kept in a container of vulume 2.43 L and temp 27degree C exerts a pressure of 4.83 atm. calculate the number of moles of gas present
A metal cube having a mass of 112 grams is dropped into a graduated cylinder containing 30.00 mL of water. This causes the water level to rise to 39.50 mL.
Find the maximun number of moles of PbCl2 that can be dissolved in 1.00 L of 0.30 M NaCl(aq) at 25 degrees celsius, given that Ksp = 1.7 x 10^-5 fpr PbCl2 at 25 degrees celsius.
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