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Consider the following balanced equation for the precipitation reaction that occurs in aqueous solution. Pb(NO3)2(aq)+2KI(aq)→PbI2(s)+2KNO3(aq) Answer the following questions if 0.50 L of 0.40 M Pb(NO3)2 is mixed with 0.50 L of 0.40 M KI: How many moles of PbI2 can form based upon complete reaction of Pb(NO3)2 and KI ? What mass of the precipitate (the solid product) should be expected to form in this reaction? (What is the theoretical yield of PbI2?)
a half-life for the disappearance of dinitrogen pentoxide of 5130 s. Suppose 0.450 atm of N2O5 is introducted into an evacuated 2.00 L flask. What will be the total gas pressure inside the flask after 3.00 hours
a 250 mL sugar solution has a density of 1.37g/mL an additional 30.0g of sugar was added to the solution, raise the volume to 24.6mL. Explain what is the density of the resulting sugar solution
When adjusted for any changes in delta h and delta S with temperature, the standard free energy change delta G at 500K is equal to 9.8x10 4 J/mol.
At high temperatures phosgene (COCl2) decomposes to give carbon monoxide CO and Cl2. In a typical experiment, 0.631 g of COCl2 is injected into a flask of volume 472 cc.
How many ATP can be synthesized (theoretically) when the electrons of CoQH2 are transferred to cytochrome C? Justify quantitatively by first calculating delta G naught prime.
Question- Write out a series of reaction steps (with electron pushing arrows) where octane is converted to different products by oxidation reaction with any combination you want of O3, OH, or atomic O.
When the actual pressure is 76.25 cm Hg the barometer reads 74.89 cm. What will the barometer read when the actual pressure is 73.27 cm of mercury
Using KEGG to trace metabolic pathways. KEGG is a database of genes and genomes organized by metabolic pathways. It is vital to know how to read these metabolic maps and how to use them to pull together entire pathways.
When X rays of wavelength 0.096 nm are diffracted by a metallic crystal, the angle of first-order diffraction (n = 1) is measured to be 15.2°. What is the distance between the layers of atoms responsible for the diffraction.
The titration of a weak acid with NaOH showed Two equivalent points. Using only this information, determine the relationship between the molarity and normality of this acid solution
Benzene (C6H6) is converted to cyclohexane (C6H12) by direct addition of hydrogen gas H2. The plant produces 100 Ib-moles/hr of cyclohexane. 90% of benzene fed to the process reacts to form cyclohexane.
Define pH. why do chemists normally choose to discuss the acidity of a solution in terms of pH rather than hydrogen ion concentration [H+]
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