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A mixture initially contains A,B, and C in the following concentrations: A= 0.650 M, B= 0.800M , and C= 0.550M . The following reaction occurs and equilibrium is established:
At equilibrium, A= 0.490M and C = 0.710M . Calculate the value of the equilibrium constant
Select the strongest interparticle force(s) present in Mg3N2.
What phase or phases are present when 250. kJ of energy is removed from this sample? Specific heat capacities:
Calculate the entropy change when 1.86 g of H2 reacts with O2 according to the reaction 2H2(g) + O2(g) ! 2H2O(l) at 298 K and 1 atm pressure.
What is the expected Nernst responce, in mV, for each decade change in the gydrogen ion concentration for a glass electrode
A 4.78 g sample of aluminum completely reacts with oxygen to form 6.67 grams of aluminum oxide. Use this date to calculate the mass percent composition of aluminum in aluminum oxide.
Describe the preparation of 1.5 liters of a 0.1 M acetate buffer, pH 5.0, starting from solid sodium acetate trihydrate
Calculate the mass of HONH2 required to dissolve in enough water to make 250.0 ml of solution having a pHof 10.00 (Kb=1.1*10 (-8).
The benzene-toluene system obeys Raoult's law because benzene and toluene molecules have similar shapes and electronic structures
Nicotine, a component of tobacco, is composed of C, H, and N. A 12.075 mg sample of nicotine was combusted, producing 32.757 mg of CO2 and 9.391 mg of H2O. What is the empirical formula for nicotine?
what are possible reasons for the differences observed in conductivity for H3PO4 and H3BO3? Explain it please. B) Write out the dissociation steps for H3PO4 and H3BO3.
Calculate the mass of gasoline (in kg) needed to fill up a small tank which has a capacity of 3.0 L. Assume that the density of gasoline is 0.80 g/mL
Which of the following means of transport would be used to move a medium sized molecule (like an amino acid) from a low concentraion on the outside of a cell to a high concentraion
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