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What is the oxidation number of O in the ion OH-? - Socratic
In a hydroxide #(OH^-)# ion, we see that the total charge of the ion is #-1#. That means, the total sum of the oxidation numbers of the elements present in the ion totals out to be #-1#. The ion has one oxygen atom and one hydrogen atom. Hydrogen is less electronegative than oxygen, and so will possess its usual #+1# state.

How to you convert between pH, pOH, [H+] and [OH-]? - Socratic
Here's a concept map that shows how to get from any of these to the other. [Really, the only things you need to remember are:

Balancing Redox Equations Using the Oxidation Number Method
Balancing a redox reaction requires identifying the oxidation numbers in the net ionic equation, breaking the equation into half reactions, adding the electrons, balancing the charges with the addition of hydrogen or hydroxide ions, and then completing the equation.

How can you tell the difference between an acid and a base ... - Socratic
In this case it is easiest to recognize the OH^- as a base (check: yes, it would accept a proton). That means the other compound on the right must be the acid. BOTH are "conjugates" of the original acid-base pair on the reactant side, so the original "acid" is H_2O (because the conjugate base is the OH^-) and the original base is the C_5H_5N.

Conjugate Acids and Conjugate Bases - Chemistry - Socratic
HCO₃⁻ + H₂O → H₂CO₃ + OH⁻ base + acid → Conj A + Conj B. We see that HCO₃⁻ becomes H₂CO₃. It has one more H atom and one more + charge (-1 + 1 = 0). So H₂CO₃ is the conjugate acid of HCO₃⁻. The H₂O becomes OH⁻. It has one less H atom and one more – charge. So OH⁻ is the conjugate base of H₂O.

What is the net ionic equation for the reaction - Socratic
2"OH"_text((aq])^(-) + "Cu"_text((aq])^(2+) -> "Cu"("OH")_text(2(s]) darr You're dealing with a double replacement reaction in which two soluble ionic compounds react to form an insoluble solid that precipitates out of the aqueous solution.

pH - Chemistry - Socratic
pH is a measure of hydrogen ion concentration. The pH scale was originated by Sorensen. He set 0 pH as the hydrogen ion concentration of a 1.0 molar solution of a strong monoprotic acid (like HCl).

What are the orders of #"CV"^(+)# and #"OH"^(-)# for the ... - Socratic
Where #OH^-) and CV^+# are the concentration of them in M. We know that the concentration of NaOH is 0.1M or the #OH^- # concentration is 0.1M as 1 mol of NaOH contributes 1 mole of #OH^-# because it is a strong base. The equation for dissociation in water #"NaOH" + "H"_2"O" rightleftharpoons "Na"^+ + "OH"^-# Plug in the new found variable

What is the pH of a solution with [OH^-] = 1*10^-4 M? - Socratic
pH =10 First solve for pOH using the equation pOH=-log[OH-] = 4 Then plug the pOH in the equation, pH + pOH =14 then solve for pH. pH =14 - 4 = 10

Balancing Chemical Equations - Chemistry - Socratic
Mass is conserved rather than created or destroyed so when a chemical equation is written, it must be balanced so that there is the same amount of reactants going in as yielded product. The equation is balanced by changing the scalar numbers that precede each part of the equation.

 

 

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