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A 0.4000 g sample that contained 96.4% Na2SO4 (142.04 g/mol) required 41.25 mL of barium chloride solution to reach the endpoint in a precipitation titration. What is the molarity of the BaCl2 solution
Write the charge balance eqtn for a saturated soln of CdCO3. Hint: there are 4 relevent chemical eqtns
what is the balanced equation with notations for steam reacting with solid carbon to form the gases carbon monoxide and hydrogen.
Geologist can estimate the age of rocks by their uranium-238 content. The uranium is incorporated in the rock as it hardens and then decays with first-order kinetics and a half-life
How many grams of NaCl can be produced from the reaction of 1.35g of Na2CO3 with 125mL of 0.265M HCl according to the following reaction
What is the internal energy change for the gas? Give your answer in joules (J), accurate to three significant figures.
propes a mechanism that shows why P-chlorotoluene reacts with sodium amide in liquid NH3 At -33C to give a 1:1 mixture of P-toluidine and m-toluidine
Calculate the volume in liters occupied by 0.350 moles of propane gas at a pressure of 0.850 atmospheres
Describe the mechanism of the preparation of 2-methyl-3-hexanol by reducing an appropriate carbonyl compound.
The Ka for lactic acid is 1.4x10^-4. What is the pH of this buffer after .10 mol of solid NaOH has been added?
Suppose 1500 J of heat energy are put into a sample of liquid water at 25 degrees celsius, and the final temperature of the water is 75 degrees celsius. How many grams of water are present?
What is the pH of a solution made up by adding 100 mL of 0.00010 M HCl to 50.0 mL of 1.0E-4 M NaOH
What volume (mL) of 0.663M potassium hydroxide aqueous solution is needed to neutralize [?this means to completely react with] 842 mL of 0.554M nitric acid?
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