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When a compound containing C and H is burned in oxygen, the reaction produces 0.90 mol of CO2 and 0.45 mol of H2O. Determine the number of mols of carbon in the compound. Determine the number of mols of hydrogen in the compound.
It is possible to define metallic character as we do in this book and base it on the reactivity of the element and the ease with which it loses electrons.
Initial concentration of CH3NC is 0.0340M. How many minutes does it take for the CH3NC concentration to drop to 0.0300M?
Write the equations for the ionization of 3-aminophenol. Would this substance be more soluble in water at pH 2.0 or pH 8.0? Would you expect this substance to be absorbed into the bloodstream in the stomach or the intestines?
calculate the pressure exerted in the closed end of an apparatus if the atmospheric pressure is 720.0 torr and the height of the water column is 22.3 cm.
A flask contains 0.350 grams of liquid Br( bromine). calculate the number of (Br)bromine molecules present in the flask
What are some of the general properties that distinguish metals
Using the technique of the previous problem ?E was found to be -2,000.00 kJ/mol of an unknown liquid hydrocarbon at 298 K. In another experiment it was determined that for each mole of hydrocarbon, 4 moles of oxygen gas are consumed and 9 moles of..
Barium sulfate, BaSO4, is used in medical imaging of the GI tract because it is opaque to X rays. A barium sulfate solution, sometimes called a cocktail, is ingested by the patient
what is the molar mas of gas if 1.20g of the gas has a volume of 235 mL at STP? A 1.26 sample of He gas has a pressure of .123 atm and volume of 32.6 L. what is the temperature in degrees C?
the open end of a melting point capillary tube allow you to measure the melting point of a compound that sublimes?
A student determined the freezing point of pure t-butyl alcohol following the procedure given in this experiment . Because of an experimental error, the freezing point temperature that she obtained was higher than the correct value
A 25.0 mL sample of a 0.115 M solution of acetic acid is titrated with a 0.144 M solution of NaOH. Calculate the pH of the titration mixture after 10.0, 20.0, and 30.0 mL of base have been added.
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