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Describe what is meant by part per million and part per billion. Compare and contrast the normal definition when referring to a liquid and gas?
Tungsten crystallizes in a cubic unit cell with an esge length of 3.165 (Angrstroms)and with a tungsten atom on each of the corners of the unit cell and in the center of the unit cell
What absorption is diagnostic of benzophenone and not present in benzhydrol (give frequency and functional group); and what absorption is diagnostic of benzhydrol and not present in benzophenone
Write a balanced equation between citric acid (RCOOH) and sodium hydrogen carbonate
An experiment requires 42.5 g of sulfuric acid, which is easier to measure by volume than by mass. What volume in mL should be measured out, if the density of the sulfuric acid is 1.84 g/cm^3
A mixture of cis and trans GKW was analyzed using UV-Vis spectroscopy to make absorption measurements at two different wavelenghts. From the data given below, calculate the molar concentrations of the cis and trans isomers
A reaction has a theoretical yield of 8.83 g of ammonia. the reaction gives off 10.24 L of ammonia measure at 52*C and 105.3kPa what was the percent yield of the reaction?
By combining your answers and using the average bond enthalpy for C-H (413 kJ/mol) calculate the average bond enthalpy for the carbon-carbon bonds in C6H6
200 ml of 1.00m naoh is reacted with 200 ml of 1.00 m hcl in a calorimeter. the calorimeter and the solutions were at
For the reaction [NH3] + [H3O+] draw the conjugate acid and base products of each reaction. Also determine whether the acid-base equilibrium would lie on the left or the right.
Magnesium phosphate precipitates from an aqueous solution. Does the entropy of the system increase or decrease
A mixture initially contains and in the following concentrations: a= 0.700M , b= 1.25M , and C= 0.550M . The following reaction occurs and equilibrium is established
A 100.0 g copper sample (specific heat = 0.385 J/goC) at 100.0oC is added to 50.0 g water at 26.5oC. What is the final temperature of the copper-water mixture?
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