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Cerrena [4.2K]
3 years ago
9

Calculate the mass in grams of each sample. 4.88x10^20 H2O2 molecules

Chemistry
1 answer:
AleksAgata [21]3 years ago
5 0

4.88x10^20 H2O2 molecules

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If the reduction reaction has a reduction potential of 0.1 V, and the oxidation reaction has a reduction potential of -0.4V, and
aleksley [76]

Answer : The value of ΔG expressed in terms of F is, -1 F

Explanation :

First we have to calculate the standard electrode potential of the cell.

E^o=E^o_{cathode}-E^o_{anode}

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E^o=E^o_{reduction}-E^o_{oxidation}

E^o=(0.1V)-(-0.4V)=+0.5V

Now we have to calculate the standard cell potential.

Formula used :

\Delta G^o=-nFE^o

where,

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n = number of electrons = 2

F = Faraday constant

E^o = standard e.m.f of cell = +0.5 V

Now put all the given values in this formula, we get the Gibbs free energy.

\Delta G^o=-(2\times F\times 0.5)

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3 years ago
Which best explains why the game of economics does not have a single goal?
Gemiola [76]

Answer:  Different people want different things out of life

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Ano-ano ang mensahe ng grupo ng el gamma penumbra sa kanilang palabas​
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3 years ago
Sulfuric acid (H2SO4) has a molar mass of 98.1 g/mol. How many oxygen atoms are found in 75.0 g of H2SO4?
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18.33 ×10²³ atoms

Explanation:

Given data:

Molar mass of sulfuric acid = 98.1 g/mol

Mass of sulfuric acid = 75.0 g

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Solution:

Number of moles of sulfuric acid:

Number of moles = mass/molar mass

Number of moles = 75.0 g/ 98.1 g/mol

Number of moles =0.761 mol

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0.761 mol × 4 = 3.044 mol

1 mole = 6.022×10²³ atoms of oxygen

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18.33 ×10²³ atoms

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3 years ago
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