Solid aluminum metal and diatomic bromine liquid react spontaneously to form a solid product. give the balanced chemical equatio
2 answers:
Explanation:
Aluminium being metal reacts violently with liquid bromine. It is a highly exothermic reaction during which large amount of heat is released.
Aluminum when reacts with liquid bromine it gives aluminium bromide as a product.
The balanced chemical equation is given as:
According stoichiometry, 2 moles of aluminum metal react with 3 mole of liquid bromine to give 2 moles of aluminum bromide.
You might be interested in
Answer : The partial pressure of and
are, 84 torr and 778 torr respectively.
Explanation : Given,
Mass of = 15.0 g
Mass of = 22.6 g
Molar mass of = 197.4 g/mole
Molar mass of = 32 g/mole
First we have to calculate the moles of and
.
and,
Now we have to calculate the mole fraction of and
.
and,
Now we have to partial pressure of and
.
According to the Raoult's law,
where,
= partial pressure of gas
= total pressure of gas
= mole fraction of gas
and,
Therefore, the partial pressure of and
are, 84 torr and 778 torr respectively.
Answer: 3.36 L of ammonia gas
Explanation:
The balanced chemical reaction is:
According to stoichiometry :
3 moles of produce = 2 moles of
Thus 0.75 moles of will producee=
of
But as percent yield is 30 %, amount of ammonia produced =
According to ideal gas equation:
P = pressure = 1 atm
V = Volume = ?
n = number of moles = 0.15
R = gas constant =
T =temperature =
Thus 3.36 L of ammonia gas is obtained by reacting 0.75 moles of hydrogen with excess nitrogen.
The correct answer is (3)
I-131 and P-32
The explanation:
according to attached table:
- we can see that the half life of p 32 is 14.28d (more than one hour)
- and the half life of I-131 is 8.021 d (more than one hour)
and They both have β- decay mode and with half-lives greater than hour.
