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Equal quantities of 0.010M solutions of an acid HA and a base B are mixed. The pH of the resulting solution is 9.4. A) If Ka for HA is 9.0×10?5, what is the value of the equilibrium constant for the reaction between HA and B? B) What is the value of Kb for B?
During this reaction, P4 + 5O2 → P4O10, 0.800 moles of product was made in 15.0 seconds. What is the rate of reaction
Pure colored substances mostly exhibit a single peak (i.e. max) in the visible; therefore the simple rules of complementary colors apply. Mixtures are a little more complicated.
What is the structure for hexadecanol? What would explain why it is a solid, rather than a liquid?
What volume of .2 M Na2SO4 will completely react with 50 mL of .135 M Ba(NO3)2
How much energy is released during the complete combustion of 372 grams of cyclohexane ?
Draw the Lewis structure of the conjugate base for the following acid: H2SO4. Remember to include charges and non-bonding electrons where necessary. Use an expanded octet on sulfur to minimize formal charges.
What concentration of aqueous NaCl solution freezes at -15.2ºC? The freezing point of pure water is 0.0ºC and Kf of pure water is -1.86ºC/m.
Calculate the pH of a solution containing 25.00 mL of 0.12M formic acid (Ka=1.7x10^-4) to which the following amounts of 0.10M NaOH have been added:
Determine the heat of formation of sulfuric acid, H2SO4 (l) from the following thermochemical equations: S8(s) + 8 O2(g)-->8SO2(g) H= -2374.6 kJ S8(s) + 12O2(g)-->8SO3(g) H=-3165.8 kJ H2O(l)+SO3(g)-->H2SO4(l) H=-132.3 kJ 2H2(g)+O2(g)-->2H2O(l) H=..
what is the chemical equation that describes both these reactions? Please give the chemical equations of what happens in this situation
What mass of HCl is contained in 30.0ml of a solution solution which is 37.2 mass% HCl has a density of 1.19g/ml.
Hydrogen and iodine gases react to form hydrogen iodide gas. H2(g) + I2(g) → 2 HI(g) At a certain temperature and pressure 0.70 L of H2 reacts with 0.70 L of I2.
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