3 years ago

Plzzzz help due in like 10 min!!!

Chemistry

2 answers:

muminat3 years ago

3 0

Answer: for question 4, the answer would most likely be movement of air, water and rock

Explanation:

o-na [289]3 years ago

3 0

Answer:

Explanation:

It is really blurry i cant really see the pic

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2 years ago

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3 years ago

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3 years ago

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The ion MnOis often used to analyze for the Fe2+ content of an aqueous solution by using the (unbalanced) reaction Mno+Fe2+ + Fe

dusya [7]

Answer:

B) 0.230 M

Explanation:

The first step is to balance the reaction between the Ferrous ion and the permanganate ion:

$5~Fe^+^2~+~MnO_4^-^1~+~8H^+~->~5Fe^+^3~+~Mn^+^2~+4H_2O$

Then we have to calculate the moles of $MnO_4^-$ :

$M~=~\frac{mol}{L}$

$mol~=~M*L$

$mol~=~0.033~M*0.0633L=~0.002088~mol~MnO_4^-$

Then using the molar ratio we can find the moles of $Fe^+^2$ :

$0.002088~mol~MnO_4^-\frac{5~mol~Fe^+^2}{1~mol~MnO_4^-}=0.01044~mol~Fe^+^2$

Finally we can calculate the molarity:

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3 years ago

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Irina18 [472]

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