Recent content by Maharg

My answer isn't making sense. I did the calculations. So I had Kf = [CaFA]/[Ca2+][FA] 1.2E3 = [CaFA]/ (0.9E-3)(6E-8) = 6.5E- 5 mol/L But this is higher than my FA value. Somehow I'm coming up with more Ca-FA binds then total binding sites. What step am I missing?

The reactions I listed were given by my professor when I asked him for help and it left me a bit more confused. I assumed he just meant Org- is same as A-. Do I need to calculate H+? I am just looking for Ca2+Fa/Fa right?\ DO I just calculate Kf = Ca2+FA/[FA][Ca2+] I also want to thank you...

Homework Statement In natural water containing 0.9 mmol/L calcium and 12 ug/L fulvic acid, determine the fraction of the fulvic acid that is bound to calcium (i.e. the ratio between the concentration of Ca-FA and total concentration of FA binding sites), assuming that calcium is the only metal...

Homework Statement 1. A fly ash (ρ =1.8 g/mL) aerosol consists of particles averaging 13 μm in diameter and with a concentration of 800μg/m3. Use the average diameter to calculate the settling velocity (cm/s) and settling rate (μg/m/s) of the particles in air. The Stokes-Cunningham slip...

So would H2SO3 be 1E-6 M? Using that and doing the quadratic equation to calculate x I get 1E-6 and I don't think my answer makes sense. As when I check my answer I cannot get the same Ka value reported.

How do I take into account the water in the reaction then? Or how do I convert SO2 concentration to acid? That's what I don't I know how to do?

Oh yeah, guess the acid dissociation stuff slipped my mind. I haven't done much of henry's law but looking online does this go in the right direction? I found pressure of water at 25 C to be 0.032 atm. An equation showed me P[SO2] = (1 - 0.032 atm)(1E-6) = 9.7E-7 atm 1E-6 is 1 ppm of SO2...

Homework Statement Calculate the pH of rainwater in equilibrium with SO2 in a polluted air mass for which the sulfur dioxide concentration is 1ppm. SO2(g) +H2O(g) = H2SO3(aq) Kh=1M/atm H2SO3 = HSO3- + H+ Ka=1.7x10-2MHomework Equations The Attempt at a Solution I'm pretty lost for this one. I...

Parts per million. I know how to convert CO2 ppm to atm, but not sure what to do with that number either.

Homework Statement The total mass of C contained in all fossil fuels burned from 1750 to 2000 is estimated as 2.77 x 1014 kg C. The amount of C released as CO2 from agricultural expansion and deforestation during the same period is estimated as 1.31 x 1014 kg C. The concentration of CO2...

Ah, possibly I'm going about it the wrong way, can I instead just avoid the w/w of Cl? 0.6028 g / MW Cl-/ MW Ca(OCl)Cl = mol Cl- Does anyone know, I'm really lost in the solution.

One thing I was just thinking. Would amount of Ba always be the same in the total sample because of moles? Does it make sense to just take MW Ba/MW BaCl2*2H2O = 137.327/244.26296 = 56.22%

That question is exactly word for word from the book.

Homework Statement Consider an unknown solid containing BaCl2. 2H2O (MW = 244.26296). When the unknown is heated to 160 °C for 1 h, the water of crystallization is driven off: BaCl2.2H2O(s) ---> BaCl2(s)+ 2 H2O(g) A sample originally weighing 1.9226 g weighed 1.5647 g after heating...

Would I just divide it by 2? So only 1/2(1.785 mmol Cl) take place in the reaction?