Consider the reaction below.
2 answers:
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Answer:
N,N-dimethylacetamide is formed.
Explanation:
- It is an example of a nucleophilic addition-elimination reaction. Here dimethylamine acts as a nucleophile.
- In the first step, dimethyl amine gives nucleophilic addition reaction at carbonyl center of acetyl chloride.
- In the second step, removal of Cl atoms occurs.
- In the third step, deprotonation takes place from amino group to produce N,N-dimethylacetamide.
- Full reaction mechanism has been shown below.
Answer : The expression for solubility constant for this reaction will be,
Explanation :
Solubility product : It is defined as the product of the concentration of the ions that present in a solution raised to the power by its stoichiometric coefficient in a solution of a salt. This takes place at equilibrium only.
The solubility product constant is represented as, .
The dissociation of calcium phosphate is written as:
The expression for solubility constant for this reaction will be,
Answer:
The wavelength of sunlight is required to break the bond in one oxygen molecule is 242 nm.
Explanation:
Energy required to break the 1 mol oxygen-oxygen bond:
=495 kJ=495000J
1 mol = molecules
Energy required to break 1 molecule of oxygen molecule= E
=
The energy required to break the 1 molecule of oxygen is equal to enrgy of one photon of a sunlight.
where,
= wavelength of the light
E = energy of the photon
h = Planck's constant =
c = speed of light =
The wavelength of sunlight is required to break the bond in one oxygen molecule is 242 nm.