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- Question #da59d - Socratic
The answer is 1 8 * 10^(-7) "M" The general reaction looks like this Mg_((aq))^(2+) + 2NaOH_((aq)) -> Mg(OH)_(2(s)) + 2Na^(+)(aq) The reaction that is of interest is actually this Mg(OH)2(s) rightleftharpoons Mg_((aq))^(2+) + 2OH_((aq))^(-) In order to determine the maximum concentration of Mg^(2+) ions permissible in the NaOH solution before a precipitate will be formed, you'd need the value
- Why does neutralisation of any strong acid in an aqueous . . . - Socratic
Because its the same reaction A monobasic [monoprotic] acid like HCl has one H atom, which fully dissociates to form a hydrogen ion, H^+ The strong alkali fully dissociates to forman hydroxide ion OH^-, which react to from water This is the ionic equation for neutralisation and occurs for all strong acid strong alkali reactions
- Explain the mechanism for the #Pt#-catalyzed formation of . . . - Socratic
The dissociated "OH" then binds back to the surface via the oxygen atom (forming a "Pt"-"O" bond), then slightly rotates itself to stabilize 5) The formed "OH" radical then associates with an adsorbed bb"H" atom to form an adsorbed water molecule (bound by the oxygen atom in a "Pt"-"O" bond)
- What makes for a good leaving group? + Example - Socratic
A good leaving group has to be able to part with its electrons easily enough, so typically, it must be a strong acid or weak base relative to other substituents on the same molecule It helps to know the pKa of what would be leaving Let's say you had a mechanism where you are trying to do an E2 reaction to make an -OH (hydroxyl) group leave Maybe you have this compound on hand, sec-butanol
- 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
- What is the chemical formula for lithium hydroxide? - Socratic
LiOH Lithium is a Group 1 metal and commonly forms a M^+ ion Hydroxide anion, ""^(-)OH, has a unit negative charge When they make music together, there is thus 1:1 stoichiometry between ions: Li(s) + H_2O(l) rarr LiOH(aq) + 1 2H_2(g)uarr
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