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Citric acid monohydrate (Molecular weight - 210.14, pKa - 3.128, 4.761, 6.396)
Na2HPO4*12H2O (Molecular weight - 358.14, pKa - 2.148, 7.198, 12.375)
NaH2PO4*H2O (Molecular weight - 137.99, pKa - 2.148, 7.198, 12.375)
Calculate the pH of 0.40 M KNO2. What is the concentration of HNO2 in the solution
100 g of copper Cp=0.38 J/qdeg AT A temperature of 100c is added. To 25 g h2o cp =4.184. qdeg at a temperature of 20 c calculate equilibrium
Why is it an important concept that atoms generally appear in whole number molar ratios to each other in chemical compounds, and in general, would you expect that students would find this ratio to be lower or higher than the actual ratio
The equilibrium constant Kc for this reaction is greater than one. based on this information, which of the following statements is correct. A- anion is a stronger acid than HB.
Nitric oxide, oxygen, and nitrogen react by the following equation. 2 NO(g) N2(g) + O2(g)Kc = 2.3 10^30 at 298 K
Estimate the value of the equilibrium constant at 625 {rm K} for each of the following reactions. Delta H{^{circ}_{rm f}} and S{^{circ}} for rm BrCl(g) is 14.6 {rm kJ/mol} and 240.0 frac {rm J}{rm mol cdot K}, respectively.
Of the substances below, the highest fuel value is obtained from- charcoal bituminous coal natural gas hydrogen wood
87.0% of the heat produced by the boiler is used to create saturated steam at 20.0 bars (absolute) from liquid water at 24° C. If 175 m3/h of steam is needed, what rate of heat does the boiler output
what mass in grams of carbon dioxide is produced if 85.0 mol of magnesium carbonate mgco3 are heated and allowed to
If the initial surface coverage is 8.9*10^16 molecules/cm^2, how long will it take for one-half of the film to evaporate? b. What fraction of the film is left after 10 s? Assume the same initial coverage as in part a.
Catalyst to Reduce Cure Temperature in Bonding Wood with MDI, A wood chemistry course that indicates that methylene diphenylisocyanate (MDI) is used as a common resin and/or glue in bonding wood fibers together in composite type substrates.
A gaseous fuel mixture stored at 744mmHg and 298 K contains only methane and propane. When 13.0L of this fuel mixture is burned, it produces 769kJ of heat. What is the mole fraction of methane in the mixture?
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