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In a group assignment, students are required to fill 10 beakers with 0.720 M CaCl2. If the molar mass of CaCl2 is 110.98 g/mol and each beaker must have 250. mL of solution, what mass of CaCl2would be used?
The solid and toluene together weigh 58.82g . The density of toluene at the temperature of the experiment is 0.864 g/mL. What is the density of the solid
Look up specific heat of water. Find two different problems to solve concerning specific heat of water. Look up specific heat of benzene. Find two different problems to solve concerning specific heat of water.
What will the pH be after 0.0100 mol of NaOH is added to the solution? Ka for HNO2 = 4.5x10^-4
Write the net ionic equation for a solution of calcium chloride and a solution of mercury(1) nitrate
Sodium benzoate is used as a food preservative. It is a weak base with a Kb of 1.59x10-10. If 33 mL of a 0.0050 M sodium benzoate solution were titrated with 19 mL of a 0.0025 M HCl solution, what is [OH-]?
Find the volume of a molar solution and What volume of a 2.00 molar solution of sulfuric acid, H 2 SO 4 , is required to react with 250.0g of magnesium carbonate, MgCO 3 , according to the following equation?
What are some of the differences between water obtained from a river that flows past farmland and water obtained five miles
The pKa of protonated diethylamine is 10.94. What are the major forms present in a dilute soultion that is equimolar in acetic acid and diethylamine
Determine the cell reaction, the standard cell potential (E0cell) and the half-cell that acts as the cathode for the voltaic cells composed of the following half-cells.
The standard enthalpy of atomization of an element is the energy necessary to convert one mole of an element in its stable form at 25 degree Celsius to one mole of monoatomic gas.
describe the appearance of the solution if drops of .01M AgNo3 had been added directly to the test solution and then centrifuged
Benzene has a heat of vaporization of 30.72;{{rm{kJ}}}/{{rm{mol}}} and a normal boiling point of 80.1 ^circ {rm{C}}. At what temperature does benzene boil when the external pressure is 420 torr?
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