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A 23.30 g sample of a solid is placed in a flask. Toluene, in which the solid is insoluble, is added to the flask so that the total volume of solid and liquid together is 50.0 mL. The solid and toluene together weigh 51.05 g. The density of toluene at the temperature of the experiment is 0.864 g/mL. What is the density of the solid?
how many grams of oxygen gas are requirednbsp if it is desired to inflate a baggie withnbsp 842 milliliters volume by
The enthalpy of combustion for C6H12O6(s) is -2830kj/mol. Write a balanced equation for the combustion of C6H12O6 in air. Using the delta Hac values and the given heat of combustion calculate the standard enthalpy of atom combination Delta H ac of ..
start with 200 mg of cyclopentadiene and 300 mg of Maleic anhydride, and 375 mg of the cycloadduct anhydride is obtained: Which is the limiting recant?
Your body needs a small amount of sodium ion, Na1+, which your body gets by consuming table salt, or NaCl. Explain what role Na1+ plays in your body and what happens if you get too much or too little. Also find five foods that are high in sodium a..
Calculate the equilibrium concentrations if the initial concentrations are 2.31M N2 and 0.54M O2. (This N2/O2 concentration ratio is the ratio found in air.)
the forward reaction in equation 1 is catalyzed by the enzyme phosphoglucoisomerase as part of glycolysis - a common
a compound was analyzed and was found to contain the following percentages of the elements by mass barium 89.56 oxygen
a solution made by adding .106 mol of CH3COOH to 1.0 kg of water is found to freeze at -.203 C. Calculate the percent of the acid that has undergone ionization. The molal freezing point constant of water is 1.86
the gas can be treated as a) an ideal gas, b) a real gas. The critical pressure and critical temperature of propane are Pc = 42.5 bar and Tc=370 K, respectively.
Precision can be judged by examining the average of the deviations from the average value for that data set. Calculate the average value of the absolute deviations of each measurement from the average for the first set.
What is your sampling rate in ml/min if you collected, over a four hour sample
An existing power plant has been found to produce SO2 concentration of 20?g/m3 at a distance of 800m directly downwind from the stack when the wind is 4m/s from the north during a class C stability situation.
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