Answer:The actual dihedral angle of gauche butane differs because of a phenomenon known as steric effect.
Explanation: Steric effect is phenomenon that influences the shape and reactivity of ions and molecules caused by nonbonding interactions.
Steric effects goes with electronic effects, which usually tells the shape and reactivity.
Steric effects is a result of repulsive forces between overlapping electron clouds activities. These steric effects will even distort angles and molecular geometries.
In the context of butane, because presence of two bulky methyl groups (-CH3), the steric interference occurs which causes the methyl groups to be some what far apart hence, increasing the dihedral angle between the two methyl groups which in turn, affects the dihedral angles of other groups present in the molecules.
Therefore, the dihedral angles between the hydrogens are not exactly 60 or 180 degrees.
Answer:
1.5 moles of Ca²⁺ and 3 moles of NO₃⁻
Explanation:
This is the dissociation:
Ca(NO₃)₂ → Ca²⁺ + 2NO₃⁻
1.5 moles of salt will have the same moles of ion Ca²⁺ and the double of moles, of nitrate according to the equation.
Therefore will be 1.5 moles of Ca²⁺ and 3 moles of NO₃⁻
Valency is the number of electrons lost or gained by an atom to attain an stable configuration. Valency is important when writing the formula of chemical compounds in chemistry. Strontium has a valency of 2 while sulfite ion (radicle) has a valency of 2. Therefore, the chemical formula of strontium sulfite is written as SrSO3.
The little dipper is located in Ursa Minor you would also get a clue because... Minor and little
Answer: The maximum wavelength of light for which a carbon-chlorine Single bond could be broken by absorbing a single photon is 354 nm
Explanation:
The relation between energy and wavelength of light is given by Planck's equation, which is:
where,
E = energy of the light = 
(1kJ=1000J)
N= avogadro's number
h = Planck's constant
c = speed of light
= wavelength of light
Thus the maximum wavelength is 354 nm
