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The pH of a 0.010 mol L-1 solution of a weak monoprotic acid is 2.09 at 25oC. What is the pKa for this acid?
Which of the following is a buffer?
The fourth solution is 10 ml of DI water and 10 ml of solution three 5) The fifth solution is 10 ml of DI water and 10 ml of solution four I'm pretty sure we're supposed to use the C1V1=C2V2 formula
In the Lewis structure of PCl3, how many bonds and how many lone pairs are on the central atom?
Calculate the moles of ammonia produced (e) calculate the partial pressures of all species in the system (f) the total pressure in the system
bone was dissolved in hcl giving 53.0 ml of solution that contains calcium chloride potassium oxalate was added to
65.50 ml of 0.161 m hf is titrated with 0.1200 m naoh. what is thenbsp ph at the equivalence point? ka for hf is 6.8 x
at a certain temperature kc 55 and a reaction vessel contains a mixture with the following concentrations so3 0.85 m
Find the conditional formation constant for Ca(EDTA)2- at pH 9.00, where log Kf is 10.65 and ?Y4- is 0.041.
Concentrated HCl is 36.5% HCl by mass and has a density of 1.18 g/mL.What is the molality?What is the molarity?
At 25 °C and 775 Torr, carbon dioxide has a solubility of 0.0347 M in water. What is its solubility at 25 °C and 1370 Torr
Calculate the energy of a photon of electromagnetic radiation at each of the following frequencies (in J). 1. 103.7 MHz (typical frequency for FM radio broadcasting) 2. 1100 kHz
A certain substance, intially present at 0.950 M, decomposes by first-order kinetics with a rate constant of 1.25 x10-2 mol m-1 s-1. calculate the time (in seconds) required for the system to reach a concentration of 0.431M
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