can any angel tell me how can I making a compound called buffer?
451857
Chemicals used in the reaction is important. What is the pKa of the reactant? Research on which buffer and what its pH buffering region is important, because it should cover the pKa region of the chemicals used. Once knowing which buffer to make, we can take a buffer by making a mixture that have a weak acid with its salt of conjugate base, or weak base with its conjugate acid. It should be noted that here buffer solutions are presented in terms of the Brønsted-Lowry notion of acids and bases.
426896
BaCO_3+HCl - BaCl_2+CO_2+H_2_O\n\nbalance it
485893
Check on the internet for the ratios used by comercial factories, then prepare a solution from glycol and water in the given proportion. That's all!!!
920579
use synthetic  divsion method \ni think this link would help\nhttp://www.purplemath.com/modules/synthdiv.htm
836016
Here is a good guide\n\nhttp://dbhs.wvusd.k12.ca.us/webdocs/Stoichiometry/Limiting-Reagent.html
457366
formic acid is methanoic acid, mixed with sodium methanoate it will create the buffer they are using.
864388
some formulas that can help :\nhttp://www.eskridgeinc.com/support/formulas.html
197233
Try gelest.com, they manufacture a LOT of Si compounds for many applications.
993248
HCI hydrogen chloride \nto make HCI u have to mix Sulfuric Acid and Sodium
176528
http://www.chem1.com/CQ/ionbunk.html\n\nskim this article.
632890
1 is c.  Buffer is a mixture of a weak acid and its conjugate base.\n2 is a.  pH is the dependent variable in the experiment, volume of titrant (either acid or base) is the independent variable.
114804
No need to break it down to "molecular" other wise, try this: Sodium thiosulphate. Dont just use it coz they all vary in their Ph U know the basisity or acidity they concentrate.
471060
basic buffer... beacuse CN- will need H+ which is least in basic buffer
452992
Well first of all you have not given us all the information to be able to answer this buffer question.  We need to know the Ka (6.2x10-8)of the acid.  But the steps to perform the task.  Calculate how much of the acid is neutralized by the addition of the base.  Recalculate the equilibrium concentration of both the acid and base with the new acid value.  using Ka=[H+][Na2HPO4]/[NaH2PO4] solve for H+ and finally use pH=-log[H+].  Your final answer..pH=7.25
373054
HNO3 and NH4NO3. A buffer is a solution of a weak acid with the corresponding weak base. It is set up to maintain a specific range os Ph, determined by the proportions of acidvs base and by the POh of the acid/base. The amoutnt of H+ that a buffer syatem can absorb before the buffer breaks is determined by the streangth, ie molarity, of the solution. a
682917
Good Luck\nhttp://aresgalaxy.sourceforge.net/
885932
just mix petrolium and flour together in a bottle - make it thick into a sauce\n\nthat is instant NAPALM !!!!!!!!!!!!!!!!!!!!!!!