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Umnica [9.8K]
3 years ago
8

If 0.060 faraday is passed through an electrolytic cell containing a solution of In3+ ions, the maximum number of moles of In th

at could be deposited at the cathode isA) 0.010 mole
B) 0.020 mole
C) 0.030 mole
D) 0.060 mole
E) 0.18 mole

Chemistry
1 answer:
stira [4]3 years ago
8 0

Answer: option B. 0.020 mole

Explanation:Please see attachment for explanation

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A chemist prepares a solution of magnesium chloride MgCl2 by measuring out 49.mg of MgCl2 into a 100.mL volumetric flask and fil
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Answer:  Molarity of Cl^- anions in the chemist's solution is 0.0104 M

Explanation:

Molarity : It is defined as the number of moles of solute present per liter of the solution.

Formula used :

Molarity=\frac{n\times 1000}{V_s}

where,

n= moles of solute

Moles=\frac{\text{Given mass}}{\text{Molar mass}}=\frac{0.049g}{95g/mol}=5.2\times 10^{-4}moles  

V_s = volume of solution in ml = 100 ml

Now put all the given values in the formula of molarity, we get

Molarity=\frac{5.2\times 10^{-4}moles\times 1000}{100ml}=5.2\times 10^{-3}mole/L

Therefore, the molarity of solution will be 5.2\times 10^{-3}mole/L

MgCl_2\rightarrow Mg^{2+}+2Cl^-

As 1 mole of MgCl_2 gives 2 moles of Cl^-

Thus 5.2\times 10^{-3}  moles of MgCl_2 gives =\frac{2}{1}\times 5.2\times 10^{-3}=0.0104

Thus the molarity of Cl^- anions in the chemist's solution is 0.0104 M

6 0
3 years ago
Phosphorus will ____ electrons to complete its octet changing into an ____
Paraphin [41]
Steal; Anion
This is the answer because phosphorous is very electronegative.
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Alisiya [41]

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Explanation:

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A container is filled with oxygen gas, and the pressure of
Amanda [17]

Answer:

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Explanation:

Hello!

In this case, since the equivalence statement for atmospheres and pascals is:

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3 years ago
What are some similarities amongst elements within a group?
kifflom [539]
Elements in the same group have the same amount of electrons.

Elements in the same period have the same amount of atomic orbits.

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