Inorganic Chemistry

AP Chem student here with some trouble with A/B equilibrium. The problem and what I have done so far given below: 1. A solution contains .300 mol of acetic acid and .200 mol of sodium acetate in a total volume of 500 mL. How much 6.0 M NaOH must be added so that the pH of the solution equals the pKa of acetic acid? (Ka of acetic acid = 1.8 * 10^-5) I apologize for not putting this in LaTeX, but the formula I must use, known as the Henderson-Hasselbach equation, goes as such: pH = pKa + log([A-]/[HA]) where [HA] = the concentration (M) of the (weak) acid in question and [A-] = the concentration of the conjugate base. I understand that the ratio of [A-]:[H…

i was just wondering if anyone had a list of the densest/heaviest liquids/gels that are not harmful with the main aim to add weight to something without a need for any saftey equipment i.e. ventilation or protective clothing etc.

I was wondering if you could make KClO4 by electrolization just like KClO3. if anybody knows how please write back thanks

I'm just trying to find a good source of MnO2 without buying a 25KG bag of it.. any suggestions? and, is there any difference in "Electrolytic manganese dioxide"? Thnx

ammonium chloride crystallizes in the CsCl lattice, the cations and anions across the body diagonal and the edge length is 386 pm, how do we determine the radius of the ammonium ion. -> since we have the length of 386pm, and V=Lcubed, i can get the volume, but i dont know if this is even the right way, can anybody explain how to solve for the radius. thanks

i did an experiment on electrolysis on various substances. two substances were copper sulpahte which gave an ammeter reading of 0.87A and sodium chloride which gave an ammeter reading of 1.25A. i have a question which says.... suggest a reason why copper (II) sulphate and sodium chloride do not give the same ammeter readings. i would appreciate your help. thanks in advance

Hi how would I go about explaining the reason why copper and gold are colored whereas silver is not?? Strange thing is that Cu, Ag and Au are all part of the same group in the Periodic table. Did some research on the Net and I came up with energy differences in the d-orbitals that resulted in color, however, that does not explain why Ag is not colored. Would anyone like to help me on this issue?? Thanks in advance. regards scorpio_tkh

Greetings I've been reading a few posts down about separating KClO3/O4 from match heads. i get it all except for this part 4. Boil it some more, until the potassium chlorate/perchlorate starts to form i dont get it. Will the boiling create some big blob of this stuff or what. Thnx LP Aspirin

At room temp K equilibrium for this reaction is 2.65 X 10-3. what is the concentration of BrCl(g) at equilibrium if the reaction vessel is initally charged with a mixture containing 0.5 moles/L Br2 and 0.5 moles/L Cl2?

At least 10 ... Thank you.

I have a problem and here it is what will be the volume of 20.0g of cabon momoxide?

Does anyone know the correct drying agent for hydrogen selenide. Please?

what would be the order n of principal rotation, and Cn on A STRUCTURE LOOKING LIKE HEPTANE WITH 7 SIDES?

Hey guys, been away from this for awhile so I need help. Trying to make a 10% HCl solution out of a 1N solution? Thanks!

Does anyone know any examples of how a teacher could make a very diffuclut mol problem involving densitiy? i got a big test tomorrow and im trying to prepare for it

Hello How can we explain that NR3 a stronger base is compared to PR3 (with R : alkyl group)? How can we compare CF2, SiF2 und GeF2 concerning tehir stability and their structure? Thank you very much. See you soon

how do we calculate the equivalents weights of different oxidants and reductants! I know how to calculate the EW of acids, basis and salts if possible give an example What is the difference between EW and GEW (gram equivalent weight)? thank you

Why are transition elemants are coloured ?

4 Zn + 10 HNO_3 ----> 4 Zn(NO_3)_2 + NH_4NO_3 + 3H20 if i am given 29.1g of nitric acid and 10.0 g of zinc and zinc is the limiting reagent. How do i set up my equation to find how much ammonium nitrate will be formed? its 1:07, and this stoicheometry stuff is a pain for me:mad:

I`ve got a small problem that I hope someone could help me with. Is this a redox reaction? KCl03(s) ---> KCl(s) +O2(g) If it is a redoxreaction, what is oxidated and what is reducated?

The composition of hydrogen selenide can be determined by heating tin in a measured volume of gas. The hydrogen selenide is decomposed, producing solid tin selenide and hydrogen gas. If the temperature and pressure are unchanged, the gas volume when the decomposition is over is the same as it was to begin with. I need to work out a balanced equation for the reaction between hydrogen selenide and tin, and explain why the equation accounts for the fact that the gas volume is unchanged. So far I have H2Se + Sn = SnSe3 + H2, any help gratfully recieved.

Any one have a process to make aqua regia from these two items. I can't seem to get the KNO3 to go into solution.

Im confused about how H2SO4 is produced from the following equation: CuSO4 + 2HCl --> CuCl2 + H2SO4

Hi, I'd like to ecth some pcbs for an audio power amplifier but lack the equipment to handle strong acids. Has anyone ecthed pcb's with vinegar as an alternative to the acids, and ferric chloride methods ? http://www.newton.dep.anl.gov/askasci/chem03/chem03505.htm

the other day i was looking through my "lange's handbook of chemistry" and i stumbled upon a table that had many compounds and their solubilities in H2O at various temperatures. out of curiousity, i looked for the most soluble compounds. i found antimony trichloride and found that at 40 celcius, 1368g of it can dissolve in 100mL H2O. it said that at 72 celcius it is completely miscible. does anybody here find it to be possible to continuously add SbCl3 to H2O and NEVER precipitate it? i'll throw around some figures: 121.760+3*35.45=228.119=1 mole SbCl3. 1368/228.119=5.996870055M=saturated solution of SbCl3 in 100mL H2O. 100/18=5.5555 (repeating). there …