PV=nRT
Here
P1/T1= P2 / T2
1 torr=133 pascal
600 *133 /215 = 750 *133 / t2
T2= 268.75 K
Answer:
the number of carbon and hydrogen atoms present in the molecule of Ethane that is it contains two carbon atoms and six hydrogen atoms
Explanation:
Answer: Volume of the gas at STP is 22.53 L.
Explanation:
Given : Volume = 125 mL (as 1 mL = 0.001 L) = 0.125 L
Temperature = ![70^{o}C = (70 + 273) K = 343 K](https://tex.z-dn.net/?f=70%5E%7Bo%7DC%20%3D%20%2870%20%2B%20273%29%20K%20%3D%20343%20K)
Pressure = ![125 kPa = 125 kPa \times \frac{0.01 atm}{1 kPa} = 1.25 atm](https://tex.z-dn.net/?f=125%20kPa%20%3D%20125%20kPa%20%5Ctimes%20%5Cfrac%7B0.01%20atm%7D%7B1%20kPa%7D%20%3D%201.25%20atm)
According to the ideal gas equation, the volume of given nitrogen gas is calculated as follows.
PV = nRT
where,
P = pressure
V = volume
n = number of moles
R = gas constant = 0.0821 L atm/mol K
T = temperature
Substitute the values into above formula as follows.
![1.25 atm \times V = 1 mol \times 0.0821 L atm/mol K \times 343 K\\V = \frac{1 mol \times 0.0821 L atm/mol K \times 343 K}{1.25 atm}\\= \frac{28.1603}{1.25} L\\= 22.53 L](https://tex.z-dn.net/?f=1.25%20atm%20%5Ctimes%20V%20%3D%201%20mol%20%5Ctimes%200.0821%20L%20atm%2Fmol%20K%20%5Ctimes%20343%20K%5C%5CV%20%3D%20%5Cfrac%7B1%20mol%20%5Ctimes%200.0821%20L%20atm%2Fmol%20K%20%5Ctimes%20343%20K%7D%7B1.25%20atm%7D%5C%5C%3D%20%5Cfrac%7B28.1603%7D%7B1.25%7D%20L%5C%5C%3D%2022.53%20L)
Hence, volume of the gas at STP is 22.53 L.
Oxidation state of I is (-1) and for CO it is zero. Let's assume that the oxidation state of Fe in Fe(CO)₄I₂<span> (s) is x. For whole compound, the charge is zero.
Sum of oxidation numbers in all elements = Charge of the compound.
Here we have 1Fe , 4CO and 2I
hence we can find the oxidation state as;
x + 4*0 + 2*(-1) = 0
x + 0 - 2 = 0
x = +2
Hence the oxidation state of Fe in product </span>Fe(CO)₄I₂ (s) is +2.
Same as we can find the oxidation state (y) of Fe in Fe(CO)₅(s).
y + 5*0 = 0
y = 0
Since oxidation state of Fe increased from 0 to +2, the oxidized element is Fe in the given reaction.