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Determine whether each of the following compounds is ionic or covalent and draw an appropriate lewis structure.
Sketch the line-bond structure for each molecule or polyatomic ion of the following. Designate the formal charges where applicable.
This strontium isoptope is radioactive, with a half-life of 28.1 years. Calculate how long (in years) it will take for 5.63g of the isotope to be reduced to .354g by decay
a close chemical relative of the banned insecticide ddt is methoxychlor c16h15cl3o2. methoxychlor is currently used as
Describe how to prepare a total volume of 100 mL of each of the following buffer solutions via titration of 25.00 mL of 0.10M weak acid with strong base, and adding water as needed.
Discuss the phase changes that occur in the liquid solid and liquid vapor boundary. Describe how the locations of phase boundaries are obtained. Discuss any assumptions used in the Clasius Clapeyron equation.
considering the given equation h2c2o4aq 2 oh-aq ltgt c2o42-aq 2 h2ol in which it is given that for h2c2o4aq ka1 6.5
Balance the equation in acidic solution and determine how much of a 0.850 M K2Cr2O7 solution is required to completely dissolve 5.25 g Cu
What mass of carbon dioxide is present in 1.00m^3 of dry air at a temperature of 25c and a pressure of 731torr? Calculate the mass percentage of oxygen in dry air.
A reaction mixture initially contains a Br2 partial pressure of 755 torr and a Cl2 partial pressure of 725 torr at 150 K. Calculate the equilibrium partial pressure of BrCl.
Determine how will this error control the final computed percentage of CH3COOH in the vinegar
calculate the pH of solution formed by mixing 150 mL of 0.10M HC7H5O2 with 100 mL of 0.30M NaC7H5O2. The Ka for HC7H5O2 is 6.5 E -5
A tank is being filled through a valve by an ideal gas where the following applies: H=30*T(K) in J/mol for gas, R=8.314 in J/mol/K, H=40 T(K) for the liquid in J/mol (gas as liquid, different reference point than gas)
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