Explanation:
Since this is an equilibrium problem, we apply le chatelier principle. This principle states that whenever a system at equilibrium is disturbed due to change in several factors, it would move in a way to annul such change.
C2H4(g) + Cl2 ⇔ 2C2H4Cl2(g)
When the concentration of C2H4 is increased, there is more reactant sin the system. In order to annul this change, the equilibrium position will shift to the right favoring product formation.
When the concentration of C2H4Cl2 is increased, there is more product in the system. To annul this change, the equilibrium position will shift to the left, favoring reactant formation.
Answer:
2.1 °C/m
Explanation:
Hello, for this exercise, consider the formula:

Considering that the difference in the temperature is 0.284°C, and the given molality by:

Now, solving for
, we get:

Best regards.
Answer:
moles
Explanation:
We are given:
Moles of electron = 1 mole
According to mole concept:
1 mole of an atom contains
number of particles.
We know that:
Charge on 1 electron =
Charge on 1 mole of electrons =
The metal being plated has a +4 charge, thus the equation will be:

of electricity deposits = 1 mole of metal
Thus 861.8 C of electricity deposits =
moles of metal
Thus
moles of metal should be plated
Answer: The pressure in torr is 461 torr
Explanation:
To calculate the relation of density and molar mass of a compound, we use the ideal gas equation:
PV=nRT
P = pressure
V = Volume
n = number of moles
R = gas constant = 0.0821 Latm/Kmol
T = temperature =
Number of moles (n) can be written as:

where, m = given mass
M = molar mass = 44 g/mol

where,

where d = density = 2.54 g/L
The relation becomes:
PM=dRT


(760torr=1atm)
Thus the pressure in torr is 461 torr
Answer:
the answer is B 200%
Explanation:
cause its the second column