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- Could a buffered solution be made by mixing aqueous . . . - Socratic
No, and you've also got two definitions mixed up Two things: The whole point of a buffer is to resist pH change You're not going to do that with two things that dissociate completely "HCl" and "NaOH" are not conjugates of each other What is the definition of a conjugate base or acid? What do they differ by? Any strong acid has a terrible conjugate base that does almost literally nothing in
- Question #ddcdf - Socratic
For starters, ignore the hydroxide anions present on the reactants' side, they will come into play later The half-reaction given to you describes the oxidation of chromium from an oxidation state of #color(blue)(+3)# on the reactants' side to an oxidation state of #color(blue)(+6)# on the products' side
- Question #b7836 - Socratic
The phenolphthalein alkalinity is "15 1 meq CaCO"_3" L"; the total alkalinity is "23 6 meq CaCO"_3" L" Alkalinity in water is caused by the presence of "HCO"_3^-, "CO"_3^(2-) and "OH"^- ions Phenolphthalein alkalinity is determined by titration to a phenolphthalein end point (pH 8 3) It indicates the total hydroxide and half the carbonate present Titration to a methyl orange end point (pH
- How do acid and bases react? + Example - Socratic
neutralisation When an acid and a base are placed together, they react to neutralize the acid and base properties, producing a salt (neutralisation) The H(+) in the acid combines with the OH(-) in the base to form water (colourless) The compound formed by the cation of the base and the anion of the acid is called a salt Example HCl + NaOH → NaCl + H_2 O Hydrochloric acid + Sodium
- Why is tamarind juice used to clean verdigris from copper . . . - Socratic
Undoubtedly because it works and is cheap, but as chemists we can suggest the chemical equation Copper and (sometimes) brass (a copper alloy) acquires a green patina of verdigris, which is CuCO_3 or maybe copper acetate The best example of this is the Statue of Liberty in New York Harbour, the which over the years has acquired an impressive chalky green coating Tamarind juice is quite
- PH Question? - Socratic
(A) A quick way of finding the pH of a weak acid is to use the expression: #sf(pH=1 2(pK_a-loga))# #sf(pK_a=-logK_a=-log(3xx10^(-8))=7 523)#
- Question #e2e8b - Socratic
To find the percent composition of a substance like aluminum hydroxide we first need to determine the formula for the molecule In this case Aluminum is an ion of #Al^(+3)# and the hydroxide is a polyatomic ion of #OH^(-1)# The formula is therefore #Al(OH)_3# aluminum has a mass of 27 9 amu oxygen has a mass of 15 99 amu
- Question #7f6cb - Socratic
I'd go for no reaction, but I suspect that the answer is 4 dissociation Potassium chloride, "KCl", and sodium hydroxide, "NaOH", are both soluble ionic compounds, so you can expect them to exist as ions in aqueous solution
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