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For each of the following, write chemical equations showing how an aqueous solution containing the indicated solutes in comparable concentrations can act as a buffer solution.
(a) HNO2 and Mg(NO2)2
(b) K2SO3 and NaHSO3
(c) HN(CH3)3Cl and N(CH3)3
(d) Na2H2P2O7 and Na3HP2O7
At 1045K the partial pressures of an equilibrium mixture of H2O (g), H2 (g), and O2 (g) are .040, .0045, and .0030 respectively. Calculate the value of the equilibrium constant Kp at 1045K
Start with a liquid labeled "20.00mL HCl (aq)", you are able to reach equilibrium (at pH 7.000) through titration by adding 14.25 mL of 0.2030 M NaOH. What is the Molarity of the acid
Cytochrome c oxidase receives electrons from reduced cytochrome c (Cyt c red) and transmits them to molecular oxygen with the formation of water.
How many kilojoules ore released when 3.6 L H2(g) and 2.4 L F2(g) react to form HF(g) at a constant pressure of 1 atm and initial and final temeratures of 25 C
A circular colony of mold with diameter of 4.8 cm and density of 0.0023 g/cm2 what is the mass of object
At 1000 K, a sample of pure NO2 gas decomposes. 2 NO2(g) ->2 NO(g) + O2(g) The equilibrium constant KP is 158. Analysis shows that the partial pressure of O2 is 0.44 atm at equilibrium. Calculate the pressure of NO and NO2 in the mixture.
Determine the mass of CuSO4 · 5H2O that must be used to prepare 250 mL of 0.88 M CuSO4(aq).Answer in units of g.
Complete the following table by calculating the missing entries. In each case indicate whether the solution is acidic or basic. pH pOH [H+] [OH -] acidic or basic
According to the following thermochemical equation, what mass of H2O (in g) must form in order to produce 975 kJ of energy?
Glycophorin A is a 131 residue integral membrane protein that contains a single transmembrane alpha helix. If the lipid bilayer has a thickness of 30 A, calculate the number of residues of an alpha helix
Sucrose (C12H22O11, table sugar) is oxidized in the body by O2 via a complex set of reactions that ultimately produces CO2(g) and H2O(g) and releases 5.64 x 103 kJ/mol sucrose. What is q (heat change) per gram of sucrose oxidized
How are moles, masses, and volumes of gases calculated from one another for a gas at STP
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