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When a 0.6333-g sample of a compound of carbon, hydrogen and sulfur was burned in excess oxygen, 0.9272 g CO2, 0.3795 g H2O and 0.6749 g SO2 were obtained. In a separate experiment, it was found that, for fixed temperature and pressure, a 0.100 L sample of this compound takes 1.97 times longer to effuse than does a 0.100 L sample of Ar(g). What is the molecular formula of the compound? draw possible structures for the molecule.
Based on the first and fourth sketches(Part C figure) , what is the density of the block? First sketch shows mass of the block = 50g. Second sketch shows block completely immersed in water(at 20 degree Celsius), mass of block now = 5.6g and densit..
How many coulombs of charge are required to cause reduction of 0.20 mole of Cr3+ to Cr? A. 0.60C B. 3.0C C. 2.9×104 C D. 5.8×104 C E. 9.65×104 C an explanation please
question rhenium-186 is a szlig-emitter with a half-life of 90.0 hours. how long would it take for the activity in a
What is the standard free energy change (kJ) for the following reaction at 499.0 K ? [Note: Answer should be expressed as "xxx.x", or with one sig fig after the decimal
If the actual yield is 220.0 g and the theoretical yield is 275.6 g then what will be the percent yield of ferrous sulfide.
Following the procedure of this experiment, a student team used 0.266g of barium nitrate and 0.424g potassium iodate and collected 0.395g of barium iodate. What was the theoretical yield of barium iodate?
How high must a waterfall be for the water to change temperature by 0.1K during its fall (assuming no evaporation)
What external pressures have moved mainstream medicine to accept alternative therapies? Have any alternative therapies been proven to work as well as standard treatments? Support your answer with information from the reading materials and/or inter..
a robust first grader goes for swimming lessons three times a week and he enjoys it thoroughly. during the first week
Calculate the concentration of H2SO4 if 25.00 mL of the acid is titrated with 41.70 mL of 3.000 M KOH to produce K2SO4 and water
After the removal of the solid the solution was made basic and more H2S was added and a dark precipitate again formed. Treatment of the filtrate with (NH4)2CO3 resulted in a white precipitate. If no further test were made then what conclusions can..
A balloon was filled to a volume 2.50 L when the temperature was 30.0 degrees C. What would the volume become if the temperature dropped to 11.0 degrees C
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