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Oxygen always has an oxidation number of
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How many molecules are present in a $27*g$ mass of $OF_2(g)$?
Where $N_A="Avogadro's number"$ $=$ $6.022xx10^23*mol^-1$ $"Number of moles"$ $=$ $"Mass"/"Molar mass"$ $=$ $(27*g)/(54.00*g*mol^-1)=0.500*mol$ And thus $"Number of molecules"$ $=$ $6.022xx10^23*mol^-1$ $=$ $3.011xx10^23$ $OF_2$ molecules.......... What is the oxdation number of...
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Cobalt, a transition metal, can have an oxidation number of either 2+ or 3+. What are the two possible chemical formula for the chemical combination of cobalt with oxygen?
And $"cobalt(III) oxide"$, $Co_2O_3$.....$"cobaltic oxide"$. And a mixed oxidation state oxide exists, $Co_3O_4$ (note that I simply added the given formulae together, $"cobalt(II,III) oxide"$).
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A mixture of neon and oxygen gases, in a 9.77 L flask at 65 °C, contains 2.84 grams of neon and 7.67 grams of oxygen. The partial pressure of oxygen in the flask is ? atm and the total pressure in the flask is atm?
We can use the to calculate the partial pressures. $color(blue)(bar(ul(|color(white)(a/a)pV = nRTcolor(white)(a/a)|)))" "$ or $p = (nRT)/V$ The number of moles $n$...
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Which sample has the most number of atoms?
$A.$ $"1 mole of oxygen atoms;"$
$B.$ $"1 mole of oxygen molecules;"$
$C.$ $"1 mole of ozone molecules;"$
$D.$ $"Each sample contains the same number of atoms."$
Mass is a measure of the number of particles. Here you have $O$ atoms, and dioxygen, $O_2$, and ozone molecules, $O_3$ but each have the same mass by specification. There...
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Oxygen almost always has an oxidation number of -2. Therefore in the formula for the mineral wüstite, $FeO$, what must the oxidation number for iron be? In the formula for hematite, $Fe_2O_3$, what must the oxidation number for iron be?
In its oxides, an oxidation number of $-II$ is typical. And since, for neutral , the sum of the is $0$. For $"ferrous oxide"$ we have $Fe^(+II)O^(-II)$; and for $"ferric...
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What are $"oxidation state"$, or $"oxidation number"$?
$"Oxidation/state"$ number is the charge left on the atom of interest, when all the pairs of electrons are broken with the charge assigned to the most electronegative atom. See...
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Element $A$ in a compound ABD has oxidation number $A^(n-)$ .It is oxidised by $Cr_2O_7^(2-)$ in acid medium. In an experiment $1.68*10^-3$ moles of $K_2Cr_2O_7$ were used for $3.36*10^(-3)$ moles of ABD. the new oxidation number of A after oxidation is?
For starters, you should know that chromium has an oxidation number equal to $+6$ in the dichromate anion. The two most common oxidation states for chromium are $+6$ and $+3$,...
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What is $"oxidation number"$? And what are the oxidation numbers of the constituent atoms in sodium carbonate?
I have got the rules from elsewhere: $1.$ $"The oxidation number of a free element is always 0."$ $2.$ $"The oxidation number of a mono-atomic ion is equal"$ $"to the...
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What are the oxidation numbers of $SO_2$, $SO_3$, $P_2O_3$, and $P_2O_5$? What is the oxidation number of hydrogen peroxide?
And for oxides, the oxygen state of the oxygen is necessarily $-II$.. And we assign the oxidation state of the heteroatom on this basis.... $SO_2$, we gots $S(+IV)$; $SO_3$, we...
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How do we represent the oxidation of ethanol to acetic acid by potassium permanganate using the oxidation number method?
Just to expand on the subject of oxidation of alcohols, the method of oxidation number, and gain or loss of electrons, can be utilized in the scenario, provided that we...
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