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An organic compound was synthesized & a sample of it was analyzed & found to contain only C, H, N, O, & Cl. It was observed that when a 0.150g sample of the compound was burned it produced 0.138g CO2 & 0.0556g H2O. All the nitrogen in a different 0.200g sample of the compound was converted to NH3, which was found to weigh 0.0238g. Finally the chlorine in a 0.125g sample of the compound was converted to Cl- and by reacting it with AgNO3, all the chlorine was recovered as the solid AgCl. The AgCl, when dried was found to weigh 0.251g. What is the empirical formula of this compound?
What is the number of substituents that are equatorial for a stable (E)-1-chloro-3-methylcyclohexane when A for methyl is 1.74 and A for chloro is 0.50
Draw the Fischer projection formula for 2R,4R-pentanediol. State how many stereoisomer of this compound. Also draw any two stereoisomers of 2R,4R-pentanediol, label the configurations of their steroecenters and indicate their relationship to 2R,4R..
granite rock has a specific heat capacity of 0.80 jmiddotdegc-1middotg-1. a 15 g rock was warmed by 202 j of energy
20.00 ml of 0.100F Pb(No3)2 (FW 331.2) are mixed with 15.00 ml of 0.125 F Nal (FW 149.9). Lead (II) and iodide form an insoluble salt pbl2 (FW 461.0) Calculate the concentration of each of the remaining ions after mixing. [Pb+2], [i-],[na+],[n03-]..
What volume of 1.40M NaOH solution must you add in order to prepare an acetate buffer of pH = 4.83? (The pKa of acetic acid is 4.76).
Alkynes can be hydrated in the presence of acid and HgSO4, by electrophilic addition of a molecule of water to the triple bond.
Working on a lab report and need to answer the question: why would any insoluble hydroxide tend to dissolve in acidic solution?
Write a balanced (a) molecular, (b) overall ionic, and (c) net ionic equation for the reaction between an aqueous solution of phosphoric acid, H3PO4 (aq) , and an aqueous solution of sodium hydroxide. The products are sodium phosphate and water
One of the first steps in the enrichment of uranium for use in nuclear power plants involves a displacement reaction between and aqueous HF.
What will happen to the retention time if the flow rate is increased What will happen to the retention time if the temperature of the column is increased
The rainwater is mainly composed of NaCl 1 mM and its pH is 4.6. Without using a computer, determine the concentration of Ca2+in runoff water.
From the examples you state, select one acid, one base, and one salt and describe specifically how and where they are used in therapeutic processes. Define a buffer and explain how a buffer works.
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