Ph Definition and 520 Threads

1.00 g of formic acid and 1.00 g of potassium formate acid are dissolved in enough water to give 100.0 ml of solution. Calculate the pH of the solution. >> I'm not really sure how to start this. These are two acids being mixed together... Would there be a reaction? I'm very confused on how...

I'm posting this here because I don't know the legitimacy of the topic and whether it qualifies for discussion in the other physics sections. Curious thing happened today that's got me wondering... I met someone who represented a company that apparently sells healing and therapeutic...

Does anyone know whether there is any university having researches on General Relativity itself, not its application in Astrophysics? If so, what mathematics do I need rather than differential geometry?

50.00 mL of 0.1000 M citric acid (Ka = 7.41 x 10^-4). titrated 50.00 mL NaOH added. Calculate pH. I have equal moles of Acid and equal moles of Base. But, I am titrating a strong base into a weak acid. So, instead of my pH being 7, I assume it should be just above 7. But, I am not...

1. what is the pH of a solution that contains 1.56X 10^5 M hydrogen ions ? 2. Is there a pH above which the molarity of hydrogen of water is higher that the molarity of hydrogen ions derived from the dissolved chemical, and what is it? 3. What is the pH of 10^-8 M solution of HCl, when HCl...

what is the relationship between Algae and pH value? why there are more algae ,pH value rises?

Is it really possible to have strong acid/bases with a negative pH in practice, or is it purely theoretical. Like we say 10M HCl has pH = -1, does it really? Is there something that limits the range of possible pH values for a solution?

Hi ppl, I got a problem with this question Calculate the pH of 2.00dm3 of an aqueous solution which contains 12.4g of CH3NH2 and 13.5g of methylammonium chloride, CH3NH3+Cl-. The Pka of methylammonium chloride is given as 10.8 Thanks a lot for any help, Joe

Changes Of pH values... Could You Guys Help Me Out With THis Question Please, Why would the pH of a solution not change by much when a little amount of acid or alkali are added to the solution??

I know this is simple, but I am a bit confused 1) find the pH of 12.1 M HCl - the negative log gives me -1.8. What am I doing wrong 2) 50% NaOH (roughly 15 M) - I am not sure how to do this one either thanks nautica

can someone give me some insight to solve this in detail : what is the ph of .01 Naoh ? and what is the ph of .035M acetic acid ?

Hi I just need to know if there was a standard concentration for the acid and base that I am going to use to change the pH of the media that I am making for bacteria? I am using NaOH and H2SO4. THanks

Anybody got a relationship between fresh water PH level, and amount of + or - net charge, say per cubic meter of H20, at a nominal temperature. Rivers are usually alkaline, thefore have a net -charge, the cubic meters flowing at X meters/sec, and therefor function effectively as a fat wire. I...

So I have an chem assignment which I've been going through for the past week or so, but the last question has provided somewhat of a stumbling block. Here it is, So from the question, I have gathered the following, High pH solutions absorb at higher wavelenghts. Whereas low pH solutions...

I know that Kw is equilibrium constant for water.. but what is Ka and Kb? I Is Ka equilibrium constant for acid and Kb equilibrium constant for Kb? If so how can u find those?? For example..here is an equation Kw = [OH-][H+] = 1e-14 What is the Ka and the Kb? Someone told me that...

__________HA <------> H+ + A- initial (mol) .1 ________ 0 ___ 0 change __ -x _______ +x ___ +x final _____.1-x _______ x ___ x Ka = 10^-8 find pH of .1 mol acid since ka X 100 = 10^-6 < .1 can use initial concentration: .1-x = .1 Ka = [H+][A-]/[HA]...

Often while channel surfing late at night, I'll see an infomercial with some doctor who claims that all ailments are caused by too much acidity in the body. So far, I have always flipped the channel immediately and given it no further thought. Now while web-surfing I found this website which...

here is a buffer problem in my HW that I'm not sure how to do. Plz help me. Plz show me how. Thanks a lot. Formula: pH = pKa + log([B-]/[HB]) ***A buffer is made up of 0.500 L each of .300 M KH2PO4 and .400 M K2HPO4. Calculate a) The pH of the buffer after the addition of 0.0500 mole of...

Help me with ph pH = -log[H+] Express the following concentrations in terms of pH. [H+] = 1 * 10^-5 mol/L

When the CuO (copper oxide) is put into water, it does not dissolve in water. But why the pH value of the water does not change?