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Explain what is the equation for the formation of the precipitate formed in a test tube containing calcium hydroxide?
At a potential of -1.00 V vs. SCE, carbon tetrachloride (CCl4) in methanol undergoes a reduc- tion to chloroform (CHCl3) at a mercury cathode:
A 25.0 mL sample of 0.150M hydrocyanic acid is titrated with a 0.150M NaOH solution. What is the pH before any base is added? The Ka of hydrocyanic acid
If a process is carried out at constant pressure P and the volume V of the system decreases, then is delta V negative or positive and is the work w negative, positive, or zero
Calculate the pH at the equivalence point in titrating 0.120 M solutions of each of the following with 7.0×10-2 M NaOH. a) lactic acid (CH_3CH(OH)COOH)
the acceleration due to gravity on the moon is about one sixth the gravitational acceleration near the earths surface.
In an adiabatic compression if one mole of an ideal gas with a Cv=5R/2, the temperature rises from 293 K to 325 K. Calculate the heat, work, change in enthalpy and change in internal energy
Calcium and Magnesium carbonates occur together in the mineral dolomite. Suppose you heat a sample of the mineral to obtain the oxides,CaO and MgO
What is the angular momentum of an electron in an orbital having 1 quanta of angular momentum
a volume of 18.0 l contains a mixture of 0.250 mols n2 0.250 mols o2 and an unknown quantity of he. the temperature
how does the strength of the attraction between water molecules and sodium and chloride ions compare with the strength
a piston-cylinder device containing water undergoes a thermodynamic cycle consisting of the following three
You add an excess of Ca(OH)2 to water maintained at a particular temperature, stir until the solution is saturated, filter, then determine the [OH-] in the solution by titration with acid
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