Answer: A. dipole
Explanation:
Dipole can be defined as the separation of the equal and opposite charges present in the molecule via ionic bonding. The water molecule comprising of two molecules of hydrogen being positively charged and one molecule of oxygen being negatively charged are connected via ionic bonding thus water molecule is an example of dipole molecule. There is unequal distribution of the electrical density throughout the molecule.
A) 0 charge. Remember Neutron- Neutral charge
Answer:
a) The half life of the radioactive sample is 0.22 years.
b) It will take 0.16 years to sample to decay to 40% of its original amount.
Explanation:
a) Initial amount of radioactive substance =
Final amount of radioactive substance after 1 year=
Decay constant = k
Decaying of radio active sample follows first order kinetics:
Half life of the sample =
The half life of the radioactive sample is 0.22 years.
b)
Initial amount of radioactive substance =
Final amount of radioactive substance after t years=
Decay constant = k =
Decaying of radio active sample follows first order kinetics:
Solving for t:
t = 0.1587 years ≈ 0.16 years
It will take 0.16 years to sample to decay to 40% of its original amount.
Answer:
(a) The concentration of after 5.00 min is 0.9672 mol/L
(b) The fraction of decomposed after 5.00 min is 0.568
The problem can be solved by using first order integrated reaction.
Explanation:
(a)
Rate constant of reaction = K =
Initial concentration of = 2.24 mol/L
Assuming final concentration of to be x mol/L
time (t) = 5.00 min
The first order integrated equation is shown below
Concentration of decomposed = 0.9672 mol/L
(b)
Concentration of decomposed =
Fraction of decomposed =
Answer:
You have a chemical reaction that is occurring