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Compute the pH of a buffer solution prepared by dissolving 4.2 g of NaHCO3 and 5.3 g of Na2CO3 in 0.20 L of water. Explain will the pH of the solution change if the volume is increased by a factor of 10? Explain.
A balloon filled with helium has a volume of 2.41 L on a warm day at 311 K. It is brought into an air-conditioned room where the temperature is 295 K. What is its new volume.
A voltaic cell is built, using the anode reaction Cu (s)=Cu^+2(aq)+2e^- and the cathode reaction Fe^+3(aq)+1e^-=Fe^+2(aq). If [Cu+2]=.50M [Fe^+2]=.10 M and [Fe^+3]=.20 M, what will the Ecell be
What is the relationship between K and Kc?
The empirical formula of a solid is AB2 and it dissolves to form the cation A2+ and the monoanion B-.Solid AB2 is added to water and allowed to reach equilibrium.
calculate the energy levels of the pi-netwrok in octatetraene c8h10 using the particle in the box model. to calculate
How many grams of barium sulfate are produced if 25.34mL of 0.1133 M BaCl2 completely react given the reaction. BaCl2(aq)+Na2SO4-BaSO4(s)+2NaCl(aq)
Suggest Chemical Reactions that could be used to identify the contents of four unlabeled bottles containing solutions of the following substances: CuSO4, Al2(SO4)3, Pb(NO3)2 and FeSO4
A conversion factor is a(n) used to express a quantity in different units of measurement. Multiplying by a conversion factor is the same as multiplying because the numerator and denominator are equivalent.
In naming disubstituted benzenes, "1,2" substitution is also known as: A. meta substitution. B. para substitution. C. ortho substitution. D. isomer substitution. E. none of the above
Presume that all the carbon ends up in CO2 and all the hydrogen ends up in H2O. Also presume that all the nitrogen ends up in the NH3 in the second experiment.
What molecule does a most probable speed of 393 m/s at 25*C? Also calculate the mean speead and root mean square speed.
find the specific solubilities (in g/100g H2O) in both cold and hot water for AgCl, PbCl2, and Hg2Cl2.
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