Compound a, c10h22o, undergoes reaction with dilute h2so4 at 50°c to yield a mixture of two alkenes, b and c, c10h20. the major alkene product, b, gives only 3-pentanone after ozone treatment followed by reduction with zinc in acetic acid. draw the structure of the major alkene product, compound b.
When compound A, undergoes reaction with dilute at to yield a mixture of two alkenes, B and C. In these two alkenes B is the major product and C is the minor product.
According to the saytzeff's rule, the more substituted alkene is formed as a major product during dehydration that means double bond is formed due to loss of water molecule. Dilute is act as a dehydrating agent.
Now the major product alkene B gives only 3-pentanone after ozonolysis followed by reduction with zinc in acetic acid.
The reaction is shown below.
answer: the enthalpy of the overall chemical reaction is +87.88 kj or +88 kj.
according to hess's law, the overall enthalpy of a reaction is the difference between the sum of enthalpy values of all the products and the sum of enthalpy values of all the reactants.
δh(reaction) = ∑nδh(products) - ∑nδh(reactants)
δh(reaction) = [δh +δh] - [δh]
δh(reaction) = [1(-287.02) + 1(0) ] - [1(-374.9)] kj = +87.88 kj
here, δh (pcl3) = -287.02 kj, δh(cl2) = 0, δh(pcl5) = -374.9 kj
therefore, enthalpy of the overall reaction is +87.88 kj or +88 kj.
first let us lay out the formula for potential
and kinetic energy:
pe = mgh
ke = (mv^2)/2
where: m=mass, v=velocity, g=gravitational
calculating for mass using the known values of
340j = m (9.81 m/s^2) (50ft) (1m/3.28ft)
m = 2.27 kg
the law of conservation of energy states that
energy is neither created nor destroyed. therefore, the change in kinetic
energy from 50 ft to 35 ft would be equal to the change in potential energy
from 50 ft to 35 ft. however it would be opposite in signs since one is losing
while other is gaining.
ke(35ft) – ke(50ft) = - [ pe(35ft) – pe(50ft]
ke(50ft) = 0 since the brick is initially at rest
ke(35ft) = 340j - 2.27kg (9.81 m/s^2) (35ft)
= 102.38 j