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How many grams of calcium hydroxide are obtained in the reaction of 60.0 gms of calcium with water?
The melting point of the aspirin was found to be 110-115 celsius. Explain why the melting point was low and why the melting range was so wide
write balanced chemical equation and determine the molecular weight of the reactants.1.within the cylinders of a cars
Draw a logarithmic concentration diagram showing the relationship between [CO2] and [Ch4] as a function of pE for pH=7 and [CO2] +
What does the volume correction constant (b) in the van der Waals equation represent? Why is b for helium small (b = 0.0238 L /?mol) compared to b for decane (C10H22, b = 0.3043).
A solution (S1) of Yellow #5 has an absorbance far outside the linear region of Beer's Law. In order to determine the concentration of this solution, a serial dilution is performed. To make S2, 10 ml of S1 is diluted to 100 mL.
Aluminum reacts with oxygen to make aluminum oxide. If 5.2 moles of aluminum react, how many moles of aluminum oxide are formed. Show work.
If 14.70ml EDTA is required to titrate the 50ml sample, what is hardness of ground water, and molarity in ppm of CaCO3 by mass?
Determine the enthalpy change deltaH for the reaction at 298 K B. Determine deltaS surr for the reaction C. Determine deltaS sys for the reaction D. Determine deltaG for this reaction. Will this reaction be spontaneous
Assuming it is composed entirely of 206Pb, 207Pb and 208 Pb and the percentages of the two lightest isotopes are equal, calculate the relative percentages of these isotopes in the natural element.
In 1774, Joseph Priestley discovered that mercury(II) oxide decomposes on heating to elemental mercury and a gas, later called oxygen. If 56.0 g of mercury(II) oxide is heated and 26.0 % of it decomposes,
Mg metal is considered an active metal,in that it spontaneously reacts with an HCl solution.silver(Ag),however, does not react with the HCl solution to any appreciable extent.using the table of standard reduction potentials, briefly explain why th..
Equal numbers of moles of toluene and benzene are mixed and form an ideal solution. Compute the mole fraction of benzene in the vapor in equilibrium swith this solution.
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