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A small crystal of sucrose (table sugar) had a mass of 37.99 mg. The dimensions of the box-like crystal were 2.33 mm x 2.97 mm x 3.54 mm. What is the density of sucrose expressed in g/cm3
What should the molar concentrations of benzoic acid and sodium benzoate be in a solution that is buffered at a pH of 4.55 and has a freezing point of -2.0 °C.
Calculate the mass of pure silver that when heated from 12.0 degrees celcius to 15.2 degrees celcius it required 1.25 kj of energy
In collisions with the walls of the container or with other molecules, energy is conserved. Collisions with the walls of the container or with other molecules are elastic. The amount of space occupied by a gas is much greater than the space occupi..
the reaction between calcium metal and chlorine gas is described by the following thermochemical equation cas cl2g
A stock solution is prepared by adding 20 mL of 1.2M NaNO2 to enough water to make 50 mL. How many moles of NO2-are in 40mL of the stock solution?
Calculate the pH of a 0.3M solutions.- how the equations are derived and the logic behind them.
The final temperature of the gas, Would it be feasible to make ethanol, C2H5OH, by the following reaction ( under standard conditions and 25 degrees C)
Commercial lye is an alkaline mixture that contains mainly sodium hydroxide, but major impurities include sodium chloride, sodium carbonate, sodium chlorate, sodium sulfate, potassium and heavy metal such as iron and nickel. A 0.8500 g sample of c..
Could you please tell me between water and alcohol, which one is more polar. and why. (please, as detailed as possible). What factors need to be considered to compare the polarity of 2 molecules.
the average ph of precipitation in rural areas is 7.00. assuming that the phnbspis controlled by the carbonate system
As a chemist for an agricultural products company, you have just developed a new herbicide,"Herbigon," that you think has the potential to kill weeds effectively. A sparingly soluble salt, Herbigon is dissolved in 1M acetic acid for technical reas..
There are two ways of utilizing hydrogen as fuel in automobiles - as the replacement of gasoline in internal combustion engine or in a fuel cell. Can you explain why a fuel cell is more efficient using the Second Law of Thermodynamics
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