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A 0.6407 g sample containing chloride and iodide ions gave a silver halide precipitate weighing 0.4430 g. This precipitate was then strongly heated i a stream of Cl2 gas to covert the AgI to AgCl. On completion of this treatment, the precipitate weighed 0.3181 g. Calculate the percentage of chloride and iodide in the sample.
The diffusion coeffiicent of a particular kind of t-RNA molecule is D=1.0x10^-11 m^2 s^-1 om the medium of a cell interior. How long does it take molecules produced in the cell nucleus to reach the wall of the cell at a distance 1.0um, correspondi..
What is the total pressure (in atm) in a 15.0 L flask 20.0 degrees celcius, which contains 0.127 moles of H2 and 0.288 moles of N2?
A 350 mL air sample collected at 35 degrees C has a pressure of 550. mmHg. What pressure will the air exert if it is allowed to expand to 425 mL at 57 degrees C?
what is the formula for the compound that crystallizes with a cubic closest packed array of sulfur ions and that contains zinc ions in 1/8 of the tetrahedral holes and aluminum in 1/2 of the octahedral holes
density of gold is 19.31 gcm3density of platinum is 21.43 gcm3if equal masses of gold and platinum are transferred to
It is desired to inflate a baggie with a volume of 959 milliliters by filling it with hydrogen gas at a pressure of 0.544 atm and a temperature of 284 K. How many grams of H2 gas are needed?
Phosgene, COCl2, is the chemical warfare gas commonly called mustard gas. It decomposes as written below. At 900 C, the Kc= 0.83. Assume 0.400 mol of COCl2 are admitted into a 2.00 L container at 900C.
If the titration of a 25 mL sample of calcium hydroxide requires 34.45 mL of a 0.100 M HCl, what is the molarity of the base. 1. Determine the conjugate acid-base pairs in each of the following reactions:
Why should you never heat a cooled system, and how does this rule apply to distillation
CH3CH2CH2CN can be synthesized by an SN2 reaction. Draw the structures of the alkyl chloride and nucleophile that will give this compound in highest yield.
Explain why the reaction of 2,4 dinitrochlorobenzene with piperidine or morpholine is second order even though there are threee reactant molecules in the overall equation for the reaction
Nitrous oxide gas is used by some denatl practitioners as a anesthetic. Nitrous oxide can be produced in small quantities in the laboratory by cardful heating of ammonium nitrate. Write the unbalanced chemical equation for the reaction.
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