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postnew [5]
3 years ago
12

A sample of liquid ammonia has a density of 0.7 g/mL. Find the mass of a 20 mL

Chemistry
1 answer:
Jet001 [13]3 years ago
3 0

Answer:

Mass of liquid ammonia is 0.035g.

Explanation:

I hope this will help u

Have a nice day

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What is oxidized in a galvanic cell with aluminum and gold electrodes ?
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In order to properly answer this or a similar question, we need to know some basic rules about galvanic cells and standard reduction potentials.

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Al^{3+}+3e^-\rightarrow Al; E^o=-1.66 V

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Since we have a galvanic cell, the overall reaction is spontaneous. A spontaneous reaction indicates that the overall cell potential should be positive.

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E_{cell}=1.66 V + 1.50 V=3.16 V

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Since oxidation is loss of electrons, notice that the loss of electrons takes place in the half-equation of aluminum: solid aluminum electrode loses 3 electrons to become aluminum cation.

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