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Question- Calculate the concentration of all species in a 0.050 M selenous acid solution. These species include [H3O+], [HSeO3^-1], [H2SeO3], and [SeO3^-2]. For selenous acid, Kal = 2.3 x 10^-3 and Ka2 = 5.3 x 10^-9
Please explain how you came up with answer I really want to understand how to calculate this
Free radicals are also important in many environmentally significant reactions. For example, photochemical smog, which forms as a result of the action of sunlight on air pollutants, is formed in part by the following two steps.
A 25.00 mL sample containing Fe3+ was treated with 10.00 mL of 0.0367M EDTA to complex all of the Fe3+ and leave excess EDTA in solution. The excess EDTA was then titrated, requiring 2.37 mL of 0.0461M Mg2+ standard solution.
an electron makes a transition from n = 7 to n = 5. what is the energy associated with this transition
deduce the SALC's not derived initially from the character table analysis. Provide normalized equations and a sketch for each group orbital.
Calculate the pH when 6.80 g of NaBrO is added to 100. mL of a 0.500M HBrO solution (assume no change in volume). 8.76 b) Calculate the pH when 100 mL of 0.50 M NaOH is added to 100 mL of a 0.50M HBrO solution. 11.0
Arrange the following solutions in order of decreasing freezing point: 0.10m Na3PO4; 0.35m NaCl; 0.20m MgCl2; 0.15m C6H12O6; 0.15m CH3COOH
A catalyst decreases the activation energy of a given reaction by exactly 15 kJ/mol. By what factor does the reaction rate increase at 25oC when the catalyst is used
Question- Calculate the pH of a 0.20M NH3 / 0.20M NH4Cl buffer after the addition of 30.0 ml of 0.10M HCl to 65.0 ml of the buffer.
Calculate the molar heat (enthalpy) of combustion for butyric acid.
the rate constant k for a reaction was measured as a function of temperature. a plot of ln k versus 1t in k is linear
Suppose a blimp holds 175,000ft3 of Helium. Suppose the gas is at 23 degree Celsius and 1.0atm, define what mass of Helium is in a blimp
An isotonic solution contains 0.95% by mass per volume. Calculate the percent mass per volume for isotonic solutions containing each of the following solutes at 50 degree Celsius . Assume a van't Hoff factor of 1.9 for all ionic solutes.
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