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Chloromycetin is an antibiotic with the formula C11H12O5N2Cl2. 1.13 grams of solution containing chloromycetin was chemically treated to convert its chlorine to chloride ions. The chloride ions were precipitated with lead ions to form lead (ii) chloride. If it took 8.54 mL of .150 M lead (ii) nitrate what is the mass of chloride in the ointment? What is the mass of Chloromycetin? What is the percent chloromycetin in the solution?
liquid octane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water. suppose 74 grams of octane is mixed with 148 grams of oxygen
Using the formula W = mg, how many milliliters of water with a density of 1g/mL are required to weigh 0.75 newtons and g = 9.81 m/s2?
At a certain temperature and pressure 4.2 L of N2 reacts with 6.3 L of O2. If all the N2 and O2 are consumed, what volume of N2O3, at the same temperature and pressure, will be produced?
Water at 0 degrees C was placed inside a vessel maintained at low pressure by a vacuum pump. After some of the water evaporated, the remainder froze. If 1.2g of water evaporated, how much ice was obtained? Use the heats of vaporization and fusion ..
calculate the heat energy released when 15.1g of liquid mercury at 25 degrees C is converted to solid mercury at its melting point
mercury(II) acetate is allowed to react completely with a solution containing 9.718 g of sodium sulfate, how many grams of the reactant in excess will remain after the reaction?
calculate the kg mix- ture from the mixer, kg water evaporated, and kg jam produced.
What is the boiling point of a mixture composed of 95.0 g HOCH2CH2OH (ethylene glycol) and 205 g H2O? The boiling point elevation constant for H2O is 0.512 °C/m.
Show all of your work for each of the following problems. An aluminum nail of mass 5.00g is immersed into a solution of copper(II)nitrate. How many grams of elemental copper can be produced from the reaction
24.6g of a hydrated salt of MgSO4.XH20, gives 12.0g of anhydrous MgSO4 on heating. What is the value of x?
Physical propoerties and intermolecular forces, What type of intermolecular forces accounts for the following differences in each case?
write the full mechanism and balanced equation for the reaction of horseradish peroxidase as an enzyme
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