Inorganic Chemistry

Self-explanatory, can the conductive properties of graphite (or near graphitized charcoal/coke) be exploited to make ion exchange membranes?

I'm looking for ways to filter (besides distillation) soluble alkaline carbonates, such as sodium and potassium carbonates from water. Do things like activated charcoal remove it?

Hi. Newbie. First post. I am hoping someone can clear something up for me. If my stock is in w/v i.e. 100 ug/ml do I have to take my aliquot in the same unit/form i.e. w/v? What happens if I did an aliquot by volume with a pippette and then made it up the desired volume. That would be v/v. Do I have to apply a conversion? Please help. Dave.

Hi All, I've been using ascorbic acid to remove salt stains for a while, but it always amazes me that it's immediate - I've attached photo's of before and after - ~3 minutes apart. What I'd like to know is why? What happens? Thanks in advance, Buddy.

Hi All, If I add Hydrochloric Acid to a pool, will the calcium hardness be lowered? If so, by how much - is there a formula I can use to calculate the final value? Thanks in advance.

If the value of K for a certain reaction at equilibrium is greater than 1 then can we say that the concentration of product is more dominant than the concentration of reactants at equilibrium state?

After seeing some videos of tritium tubes paired with solar cells to make long lasting but very low power batteries I wondered how to increase the power I'm guessing that for safety, the tritium in readily available tubes is at one atmosphere. It seems that raising the pressure to say two atmospheres would significantly increase the light output. 3 ATM? If true then at some point I expect that the phosphorus would 'max out', but just hypothetically wouldn't raising the pressure (the amount of tritium in the tube) increase the radiation within the tube and hence the brightness of the phosphorus coating? Although I would be interested in hearing b…

Hi Guys, I have a problem and I need your assistance. I have 59000 litres of stormwater trapped in a concrete sediment pond. It currently has a ph of 11 and I need to reduce this to no greater than 9 prior to discharge into bio basin. I have Hydrochloric Acid available at a concentrate of 33%. My question is how much of this Acid will i require to treat the 59000 litres to reduce the ph level from 11 to 9. I can assure you this is not an exam question from my sons grade 6 chemistry class it is a real world problem a poor old layman like myself would like to solve but im too old and tired. Sorry. Any assistance would be appreciated. …

I'm kinda confused as to how chemical reaction occurs in Electrochemistry; thus, I have questions: 1. Can Redox reaction occur in metals just changing their oxidation numbers? like Zn + Cu2+ turning to Zn2+ + Cu and if so how is it considered a chemical reaction when there is no compound being formed, no decomposition happening, nor displacement occurring just two metals transferring electrons and not even forming an alloy. 2. How does the decomposition of water via electrolysis works? Like I saw an example in the internet where two isolated containers of solution of Zn, Cu and SO42- with electrodes of Zn and Cu submerged in them that allows for electrons to tra…

How are variables in the Gas laws are formulated in such way that show direct and inverse relationships? Hi I'm a first year Environmental Science student I just want to ask how scientists were able to determine which is which like in Boyle's law, he determined that by multiplying the initial pressure and volume and making it equal to the change in pressure and volume produces an inverse relationship. I get that if you look for the missing variable; for example a high value for V2 in the equation P2= (P1)(V1) / V2 will produce a lower value for P2, but by looking at the formula P1V1 = P2V2 alone how was he able to determine that it would lead to inverse relationship.…

A while ago, I heard of purple gold. It wasnt till an hour ago I found out it wasnt an alloy but the intermetallic compound of Gold Aluminate (AuAl2) But I was wondering.... How can I make this!

From what I know, when you melt down rusty metal the rust floats to the top. However, I heard that with smelting there are chemical procedures to actually reverse the rusting effect, that after melting down the metal they will somehow turn the rust back into its natural form. Rust forms when oxygen combines with the metal so supposedly there's ways to remove the oxygen from the rust. This reversal process I believe involves the use of chemicals.

Hello all, (Sorry if I've posted this in the wrong section)I have a question for all you clever souls out there!I'm doing some chemical woodburning, using a mix of ammonium chloride and water, then applying a small amount over a stencil vinyl, peeling it off and then using a heat gun to burn the design into the wood.I am having a problem with the solution soaking into the grain instantly and therefore bleeding.I've tried a reverse stencil, spraying varnish then peeling off the stencil and using the solution on the bare areas, but it's still soaking into the grain and blurring the design.So I'm thinking, how about if I can thicken the solution to a gel like consistenc…

I would like to name the following compound. I know: cation: silver(I) anion: hydrogendithionite I´m not sure but I would correlate the cation and the anion, so silver(I) hydrogendithionite. Can I do this?

trying to decide if i can mix Peak Blue "European" OET coolant in with the factory coolant for my 2012 Volvo S60, which i think might be pentofrost nf. the first has ethylene glycol diethylene glycol water sodium benzoate denatonium benzoate and the second has: ethylene glycol 2,2'-oxybisethanol disodium tetraborate pentahydrate any negative interactions that will mess up my car?

People, Have some cupper sulfate pentahydrate, wanting to concert it to the chloride. Aqueous solution for is OK. Can I just add an excess of conc HCl to the solution of the sulfate? Then crystalize the chloride and wash off the sulfate solution? Thanks.

I have a sample of very fine abrasive powder from a company, and I am trying to figure out how to suspend it and disperse it onto my substrate. I have a probe sonicator, for agitating, but I can't find out what the appropriate liquids would be . I have tried ethanol, but when it dries it agglomerates again. I am not wanting it totally wet in a slurry, but I want it to stay 'somewhat' tacky/intact were I spray it. Based on my reading this type of Calcined alumina works in a acid environment, of about 3.5 - 4. I tried an ethanol 80% to 20% glycerin and it seemed to be the most effective, but how do I go about lowering the ph of my solution, ethanol is somewhat …

Often now pencil erasers are made from Thermoplastic Rubber (TPR), but they give off a factory fresh smell and I would like to know if there is a quick and convenient method of neutralising it ? I know that with silicone products any scents are usually embedded oils and can be encourage to the surface to be wiped away, would the same process be possible with TPR ?

hi, I was asked to balance this reaction : H3PO4(aq) + KMnO4(aq) + H2SO4(aq) → H3PO4(aq) + MnSO4(aq) + K2SO4(aq) + H2O(l) can I get some help? why we cant balance this reaction? and what can we say about a reaction that has the same compound as a reagent and a product? thank you

Why is NO3 called spectator ion because it can react with water to form HNO3 and turn water in OH- so the solution is neutral Thanks

An orbital can contain up to 2 electrons, and the electrons and orbitals are described by wave functions, are the 3 wave functions the same? for example, two electrons that are in the psi 2 0 0 orbital do they have the same wave function as that orbital?

I've been scouring the web for some hours, looking for the temperature at which potassium carbonate decomposes into potassium oxide, but have had no luck (e.g. wikipedia only tells you that it will decompose before boiling, but not at which temperature this happens... argh). This is the best I've found: https://www.sciencedirect.com/science/article/abs/pii/S0040603198002895 Does anyone know something about the matter?

What's the molecular geometry of the vinyl chloride? Is it angular? Triangular?

the mole ratio of acid: salt in production of an acidic buffer solution is between 1/10 to 10/1. 5mol HCOOH + 5mol KOH isn't a buffer solution, why? 1mol HCOOH + 1mol HCOOK is a buffer solution, why?

I've been doing some electrolysis experiments with soda ash (sodium carbonate) to decarbonate it and synthesize sodium hydroxide. Having recently extracted some pearl ash (potassium carbonate) from wood ash, I became curious in doing the same thing with it. Will electrolysis of potassium carbonate yield potassium hydroxide?