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1. Calculate the solubility in g/L of MgCO3 in the following solutions.
(a) pure water
(b) 0.0010 M Na2CO3 (Use the quadratic equation.)
2. Calculate the molar solubility of AgBr in a 3.0 M NH3 solution.
How many grams of sodium phosphate Na3PO4(163.9 g/mol) are contained in 205. mL of a sodium phosphate solution that is 0.194 M in sodium ion Na+?
Use equations to obtain expressions for the following partial derivative for a diatomic ideal gas, assuming that the temp of the system is sufficiently low that only translational and rotational motions are thermally active.
What is the difference in the chemiacl potential of this gas and an ideal gas at the same pressure and temperature?
Calculate the number of moles and molality of the solution prepared by dissolving 4.00g of NaOH in 250.0g of water.
As gas expands from 1.00 L to 2.50 L against constant pressure of 820 torr. Calculate the change in internal energy for the gas, if 120 J of heat is transferred to the gas during the expansion.
Why shouldn't you use a sample that has been melted andresolidified to confirm a melting point? e) A sample of an unknown compound has an melting point of145-154C. What conclusions would you draw? What actions would youtake?
Determine the electron geometry (eg) and molecular geometry (mg) of CH3+1.
concentration was dissolved in HCl and diluted to 100.0 mL. Aliquots of 10.00 mL of this unknown solution were added to different volumes of a 2.08 ÃŽ¼g/mL Ca standard solution and diluted to 200.0 mL. Find the weight percent of Ca in the rock sam..
What is the fractional conversion of ethane? b) What is the production rate of ethanol?
The specific heat cacpacity of solid copper metal is 0.385/Jg-K. How many joules of heat are needed to raise the temperature of a 1.55-kg block of copper from 33.0 0C to 77.5 0C
At 20 degrees C the vapor pressure of pure methanol (CH3OH) is 89.0 torr and of pure water (H2O) is 17.5 torr. A solution of methanol and water has a total vapor pressure of 52.9 torr at 20 degrees C.
if 6.oog of nitrogen gas is introduced into an evacuated 2.00L flask at 28*C, what is the pressure inside the flask?
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