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- 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
- What is the formula of #magnesium hydroxide#? - Socratic
Mg(OH)_2 Now we know that hydroxides are salts of HO^-, and some metal ion Now if the parent metal has an electronic configuration of 2:8:2, then there are 12 electrons, and the atomic number of the metal is equal to 12 We look on the Periodic Table, and we find that Z=12, for "magnesium metal" As a Group 2 metal, magnesium forms a Mg^(2+) ion, and hence its hydroxide is Mg(OH)_2
- What is the value of ΔG°cell? - Socratic
They have a cadmium anode, which is oxidized to Cd(OH)2(s) in a basic background electrolyte of concentrated OH–, and a cathode half-reaction in which NiO(OH)(s) is reduced to Ni(OH)2(s) Cd(OH)2 +2e^- -> Cd +2OH- E^o red = -0 403V
- Question #6b9a2 - Socratic
"a " 0 02 "mol" "b " 0 89 "g" In order to answer these questions we first need to know the equation representing this chemical reaction
- If 50. 0 milliliters of 3. 0 M H_3PO_4 completely . . . - Socratic
Mg(OH)_2(s) +H_3PO_4(aq) rarr Mg^(2+)HPO_4^(-)(aq) + 2H_2O(l) With respect to phosphoric acid, we got a molar quantity of 3 0*mol*L^-1xx50xx10^-3*L-=0 150*mol And thus we SUPPOSE it to have neutralized 0 0750*mol magnesium hydroxide which was ostensibly present in a 150*mL volume
- 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
- Molarity question? - Socratic
Step 3: There will be no concentration of #OH^(-)# ions because they are in a solid compound, not dissolved in solution They will no longer be anions in a solid, neutral compound Thus, molarity of #OH^(-)# is 0 Part C: Step 1: Calculate #q# for the heat the water absorbed, not the heat released by the reaction #q=s*m*DeltaT#
- 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
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