Answer:
Hybridization
Explanation:
The variations in bond angles of molecules and ions can be explained by two main concepts.
This is by the valence shell electron pair repulsion theory and hybridization.
- We can arrive at the same shape using both of the mechanism.
- In hybridization, we use hybrid orbitals to predict the shapes of the resulting molecules.
- Hybridization is the mixing or blending of two or more pure atomic orbital to form two or more hybrid atomic orbitals that are identical in shape and energy.
Answer:
8.34e23 electrons
Explanation:
One atom o 13C has 6 electrons, 6 protons, and 7 neutrons
so 1.39e23 13C atoms will have 1.39e23 x 6 = 8.34e23
<u>Answer:</u> The standard potential for the given cell is 0.89 V
<u>Explanation:</u>
The standard reduction potentials for zinc and copper are:
The substance having highest positive potential will always get reduced and will undergo reduction reaction. Here, copper will undergo reduction reaction will get reduced.
Zinc will undergo oxidation reaction and will get oxidized.
Oxidation half reaction:
Reduction half reaction:
Oxidation reaction occurs at anode and reduction reaction occurs at cathode.
To calculate the of the reaction, we use the equation:
Putting values in above equation, we get:
Hence, the standard potential for the given cell is 0.89 V
FeCl2(aq) is an ionic compound which will have the releasing of 2 Cl⁻ ions ions in water for every molecule of FeCl2 that dissolves.
FeCl2(s) --> Fe+(aq) + 2 Cl⁻(aq)
[Cl⁻] = 0.76 mol FeCl2/1L × 2 mol Cl⁻ / 1 mol FeCl2 = 1.5 M
The answer to this question is [Cl⁻] = 1.5 M