The isotope of carbon used in archaeological dating is 14^6C . How many protons, neutrons, and electrons does an atom of 14^6C h
1 answer:
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<u>Answer: </u>The molar mass of solute is 115 g/mol.
<u>Explanation:</u>
Elevation in the boiling point is defined as the difference between the boiling point of the solution and the boiling point of the pure solvent.
The expression for the calculation of elevation in boiling point is:
OR
......(1)
where,
Boiling point of pure solvent (benzene) =
Boiling point of solution =
i = Vant Hoff factor = 1 (for non-electrolytes)
= Boiling point elevation constant =
= Given mass of solute = 10 g
= Molar mass of solute = ? g/mol
= Mass of solvent = 200 g
Putting values in equation 1, we get:
Hence, the molar mass of solute is 115 g/mol.
Explanation:
The number acquired by an element after the lose or gain of an electron is called oxidation number.
For example,
Here, oxidation number of Fe(s) is 0 and Fe in is +3.
Oxidation number of O in is 0 as it is present in its elemental state.
The oxidation number of O in is calculated as follows.
Hence, oxidation number of O in is -2.
- The loss of electrons by an element or substance is called oxidation. Here, electrons are being lost by Fe(s) as an increase in oxidation state is occurring. So, Fe(s) is oxidized.
- The gain of electrons by an element or substance is called reduction. Here, electrons are being added to
as a decrease in its oxidation state is occurring. So,
- An element or compound which is being reduced is called oxidizing agent. Here,
- An element or compound which is being oxidized is called reducing agent. Here, Fe(s) is the reducing agent.