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Determine the total amount of heat absorbed by 100.0 grams of water at its boiling point [100 celsuis] to chang from liquid to gas. Compare this amount of heat to the amount of heat required to melt a 100-gram piece of ice at its melting point.
How many grams of water are required to dissolve 24g od KNO3 at 100 degrees celsius?
Using standard enthalpies of formation, calculate the change in enthalpy for the following reaction: 2C6H6 + 15O2 = 12CO2 + 6H2O. How many grams of C6H6 must be combusted in the above reaction to produce 2570 kJ of heat energy
An aerosol can has a gas pressure of 144 kPa at 293 K. Calculate the pressure when the can is heated to 425 K.
determine the quantity of charge in c has flowed if a current of 11.96 ampere flows for 8.76 hours?a boy has an aqueous
If a solution of compound S (MW = 300) with a known ? of 40,000 at ?max of 360 nm gave an absorbance of 1.0 in a 1.00-cm cell, how many mg of compound S was present in 1.0 mL of the analyzed solution
While cytotoxicity, antiviral activity, and immunosuppressant properties of didemnin-C and of its 8 analogs were excellent to very good, these compounds were, unfortunately, dropped from further studies and development at the stage of human trials..
Does GLC analysis allow you to skip the IR analytical method? Compare the two methods for advantages and disadvantages.
The combustion of octane produces carbon dioxide and water. If you start with 10.0 mol of octane, what mass of water (in grams) would you expect to produce?
The leaves of a Rhubarb contain high concentrations of diprotic oxalic acid (HOOCCOOH) and must be removed before the stems are used to make rhubarb pie. If pKa1=1.23 and pKa2=4.19, what is the pH of a .0282 M solution of oxalic acid
The molar mass of compound is measured to be 33.4, 35.2, 34.1, 33.9 g/mol in four trials. What is the avg molar mass & calculate standard deviation and %RSD for determination of the molar mass
What is the molarity of the solution if 310 of the solution reacts with magnesium to produce 7.40 of gas measured at STP?
A galvanic (voltaic) cell consists of an electrode composed of iron in a 1.0 M iron(II) ion solution and another electrode composed of copper in a 1.0 M copper(II) ion solution
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