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A compound with the formule C9H12O has a bicylic structure (but no additional rings). How many moles of hydrogen (H2) should it react with under catalytic hydrogenation conditions?
How many grams of KOH are required to neutralized 300ml of 5.0 N HN03 solution.
a protein subunit from an enzyme is part of a research study and needs to be characterized. a total of 0.160 g of this
The standard enthalpy and entropy for a slightly soluble salt at 25 degrees C were determined to be 36 kJ and 47 J/K respectively. Calculate the standard Gibbs Free Energy for this salt.
What volume of ethylene glycol (C2H6O2), a nonelectrolyte, must be added to 12.7 L of water to produce an antifreeze solution with a freezing point of -34.6°C? (The density of ethylene glycol is 1.11 g/cm3, and the density of water is 1.00 g/cm3.)
Magnesium metal is easily deformed by an applied force, whereas magnesium fluoride is shattered. Why do these two solids behave so differently
saturated r-134a vapor enters a steady-flow adiabatic compressor at 180 kpa and is compressed to 700 kpa 50degc. the
If 5.97 ml of a solution contains 2.54 mg of sodium ion, What is the molarity of the sodium chloride solution
what is the relationship between the structure of the fabric molecule and the intensity with which the azo dyes color the fabric?
80.0 of is initially at room temperature (22). A chilled steel rod at 2 is placed in the water. If the final temperature of the system is 21.5, what is the mass of the steel bar?
A 3.9336 g mixture sample of BaCl2.2H2O (244.26g/mol) and KCl (74.55g/mol) was dissolved in water and diluted to 500.00 mL. A 25.00 mL of the solution is titrated with 0.1250 M AgNO3 with K2CrO4 as an indicator.
a sample consisting of 2.0 mol co2 occupies a fixed volume of 15.0l at 300k. when it is supplied with 2.35 kj of energy
Lead is a toxic metal that affects the central nervous system. A Pb-contaminated water sample contains .0011% Pb by mass. What volume of water in mL contains 115 mg of Pb
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