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4 years ago

which half reaction describe what is taking place at the cathode during the electrolysis of melting salt of NaCl?

Chemistry

1 answer:

Mice21 [21]4 years ago

8 0

Answer:

Na+ e- - Na

Explanation:

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When 10 calories of heat are absorbed by 1 gram of water, the molecules vibrate faster and the temperature ________?

san4es73 [151]

The temperature increases.

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3 years ago

Determine how many grams of silver would be produced, if 12.83 x 10^23 atoms of copper react with an excess of silver nitrate. G

likoan [24]

Answer: The amount of silver produced in the given reaction is 459.63 g.

Explanation:

According to mole concept:

1 mole of an atom contains $6.022\times 10^{23}$ number of atoms.

For the given chemical equation:

$Cu+2AgNO_3\rightarrow Cu(NO_3)_2+2Ag$

By Stoichiometry of the reaction:

1 mole of copper produces 2 moles of silver.

This means that, $6.022\times 10^{23}$ number of atoms of copper produces $2\times 6.022\times 10^{23}$ number of atoms of silver.

So, $12.83\times 10^{23}$ number of atoms of copper will produce = $\frac{2\times 6.022\times 10^{23}}\times 12.83\times 10^{23}=25.66\times 10^{23}$ number of atoms of silver.

We know that:

Mass of 1 mole of silver = 107.87 g

Using mole concept:

If, $6.022\times 10^{23}$ number of atoms occupies 107.87 grams of silver atom.

So, $25.66\times 10^{23}$ number of atoms will occupy = $\frac{107.87g}{6.022\times 10^{23}}\times 25.66\times 10^{23}=459.63g$

Hence, the amount of silver produced in the given reaction is 459.63 g.

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3 years ago

What do you understand by Project of National Pride

LuckyWell [14K]

Answer:

National Pride Projects are a set of infrastructure projects by the government of Nepal based on the proposal by the National Planning Commission.

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4 years ago

What is different about the term “organic” when we are talking about biomolecules?

kondaur [170]

Answer:

The elemental analysis of the cell constituents shows that a cell comprises carbon, oxygen, hydrogen, nitrogen, phosphorus, etc. Proteins, Carbohydrates, Fats, Nucleic acids are known as Biomolecules. What are Biomolecules? Biomolecules are defined as any organic molecule present in a living cell which includes carbohydrates, proteins, fats etc.

Explanation:

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3 years ago

An element has a metallic-gray appearance. It also has the properties of both a metal and a nonmetal. In which section of the ta

katrin2010 [14]

Answer:

you would find it in section 3 as these are semi-metals

Explanation:

3 0

3 years ago

Read 2 more answers