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Radda [10]
3 years ago
6

The radius of an atom of element X is 1.2x10m The radius of the centre of the atom is 1/10000 the radius of the atom Calculate t

he radius of the centre of an atom of element X
Chemistry
1 answer:
Alika [10]3 years ago
8 0

Answer:

radius=1.2x10^{-3}m

Explanation:

Hello,

Based on the given information, the radius is computed via:

radius=1.2x10m*\frac{1}{10000}=1.2x10^{-3}m

By assuming that the radius of the element is 1.2x10m, nevertheless, that is a pretty much big radius for an atom in meters, maybe a power is missing, but you can modify it by just including it in the aforesaid formula.

Best regards.

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Calculate the standard potential for the following galvanic cell: Ni(s) | Ni2+(aq) || Ag+(aq) | Ag(s) which has the overall bala
mylen [45]

Answer:

1.06  V  

Explanation:

The standard reduction potentials are:

Ag^+/Ag     E° =  0.7996 V  

Ni^2+/Ni     E° = -0.257   V

The half-cell and cell reactions for Ni | Ni^2+ || Ag^+ | Ag are

Ni → Ni^2+ + 2e-                     E° = 0.257   V

<u>2Ag^+ 2e- → 2Ag               </u>    <u>E° = 0.7996 V </u>

Ni + 2Ag^+ → Ni^2+ + 2Ag     E° = 1.0566  V

To three significant figures, the standard potential for the cell is 1.06 V .

8 0
3 years ago
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Explanation:

First we <u>convert 0.80 grams of O₂ into moles</u>, using its molar mass:

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At STP, 1 mol of any given mass occupies 22.4 L. With that information in mind we <u>calculate the volume that 0.025 moles of O₂ gas would occupy</u>:

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