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If an impure sample of table salt that weighed 0.8421 g, while dissolved in water and treated with excess AgNO3, formed 2.044 g of AgCl. Explain what is the percentage of NaCl in the impure sample?
What are the other side products present in this biocatytic reaction? Name the principal enzymes taking part in this bioconversion. To which class of enzymes do they belong to?
Calculate the E0 for the following reaction by using the standard reduction potentials data in your lab manual. Write net ionic equation and half reactions of Cr2O72- oxidizing Sn2+ in acidic aqueous solution. Find an calculate their E0
In reference to the tripeptide Gly-Ala-Val, what is the isoelectric point at a pH of 5 and in what direction would it move if placed in an electric field.
What is the freezing point in of a solution prepared by dissolving 4.80 of in 110 of water. The value of for water is 1.86 , and the van't Hoff factor for is = 2.7.
how much heat is required to raise the temperature of 50.0 grams of water from 55 degrees celcius? be sure to include
a solution of .64g adrenaline in 36.0 g of CCl4 elevates the boiling point by .49 degrees C. What is the molar mass of adrenaline.
the concentration of mg2 in a sample of water is 262 mmoll at what ph will 99 of the mg2 be precipitated as mgoh2? ksp
What mass of potassium oxalate is formed? If 1.1 g of potassium oxalate are isolated in the laboratory, calculate the % yield.
the enzyme carbonic anhydrase catalyzes the reactionco2gh2olhco3-aqhaqin water without the enzyme the reaction proceeds
The standard change in Gibbs free energy is deltaG= -32.8kJ/mol. What is deltaG for this reaction at 298K when the partial pressures are PNO= .200atm, PO2= .100atm, and PNO3= .850atm
A 0.4564 g sample of a pure soluble bromide compound is dissolved in water, and all of the bromide ion is precipitated as AgBr by the addition of an excess of silver nitrate. The mass of the resulting AgBr is found to be 0.8815 g.
1. prior to placing a 5.158 g piece of metal into the graduated cylinder the level was 5.0 ml. after adding the metal
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