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Vaselesa [24]
2 years ago
8

A standard galvanic cell is constructed with Sn2+ | Sn and Cu2+ | Cu half cell compartments connected by a salt bridge. Which of

the following statements are correct? (Choose all that apply.)
1. In the external circuit, electrons flow from the Cu2+|Cu compartment to the Sn2+|Sn compartment.
2. The anode compartment is the Sn2+|Sn compartment.
3. The cathode compartment is the Sn2+|Sn compartment.
4. As the cell runs, anions will migrate from the Cu2+|Cu compartment to the Sn2+|Sn compartment.
5. Cu2+ is reduced at the cathode.
Chemistry
1 answer:
Mkey [24]2 years ago
7 0
The answer is letter C
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Answer:

The answer to your question is:  0.028 kg of NO2

Explanation:

Data

3.7 x 10²⁰ molecules of NO2 in kg

MW of NO2 = 14 + (16 x 2) = 14 + 32 = 46 kg

                   1 mol of NO2 ---------------------  6.023 x 10 ²³ molecules

                   x                     --------------------- 3.7 x 10²⁰ molecules

                   x = 3.7 x 10²⁰ x 1 / 6.023 x 10 ²³

                   x = 0.00061 mol

         

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                 0.00061 mol     ------------------    x

                 x = 0.00061 x 46/1

                x = 0.028 kg of NO2

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