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What happens when a blue copper(II)nitrate solution is mixed with a colorless solution of sodium sulfide?
A certain substance has a molar heat of vaporization of 31.6 kj/mol. How much of the sunstance is in a sample that requires 57 kj to vaporize.
Treatment of A with zinc amalgam and HCl affords an optically active, dextrorotatory hydrocarbon C. Identify compounds A, B, and C, including stereochemical configurations. Be sure to explicitly draw H and both wedge/dash bonds at any configuratio..
Calculate the pH at the equivalence point for titrating 0.170 M solutions of each of the following bases with 0.170 M HBr. a)sodium hydroxide
Calculate: Solution Density Mass fraction and % (sodium acetate) Mole fraction (sodium acetate) Molarity molality molality of solute particles
how much energy in kilojoules is required to change 47.6 g of ice at 0 degrees celcius to liquid water at the same temperature in kilocalories?
If the solubility of nitrogen is blood is 1.90 cc per 1.00 atmosphere, what is the solubility of nitrogen is a scuba diver's blood at a depth
Calculate the heat needed at 0 degrees celsius to make each of the following changes of state. kilocalories to freeze 285 of water.
How many moles of excess base are present? How many additional mL of 0.100 M HCl would be required to neutralize the solution?
Draw the reaction energy diagram for this reaction mechanism. In your diagram, label for each step, Estimate the relative amount of each product that would result. Please show all of your math
What is the pH of a buffer system that contains 0.240 M hydrocyanic acid HCN and 0.190 M sodium cyanide NaCN? The pKa of hydrocyanic acid is 9.31.
When 79.272 cg of nitrogen gas is reacted with 79.272 cg of hydrogen gas, how many grams of ammonia are formed?
the total elute from the column was diluted to 250 mL and a 50 mL aliquot was titrated with 11.35 mL of 0.10359 M sodium hydroxide. Calculate the percentage of ammonium ion in the sample.
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