84.34 grams of iron (III) chloride is the maximum produced since iron is the limiting reagent, and chlorine gas is in excess.
Explanation:
Balanced equation:
2 Fe + 3 Cl2 → 2 FeCl3
DATA PROVIDED:
iron = atoms
mass of chlorine = 67.2 liters
mass of FeCl3 =?
The number of moles of iron will be calculated as
number of moles = 
number of moles = 
number of moles = 0.52 mol of iron
moles of chlorine gas
number of moles = 
Substituting the values into the equation:
n = 
(molar mass of chlorine gas = 70.96 g/mol)
= 947.01 moles
As iron is the limiting reagent therefore
2 moles of Fe lead to 2 moles of FeCl3
0.52 moles of Fe will yield
= 
0.52 moles of FeCl3 is produced.
To express this in grams:
mass = n x molar mass
= 0.52 x 162.2 (molar mass of FeCl3 is 162.2g/mol)
= 84.34 grams
Density is calculated as mass divided by volume.
Step one:
Convert m³ to ml.
1 m³ = 1,000,000 ml
0.250 m³ x 1,000,000 = 250,000 ml
Step two: Convert mg to g.
1 mg = 0.001 g, hence 4.25 x 10^8 mg equals 0.459 g.
Consequently, the density comes out to be 0.459 g/250,000 = 1.836 x 10^-6 g/ml.
Answer:
Explanation:
Charge of one electron = 
The formula for calculating charge is:
Given that: Charge = 
Total electrons, n = 
Answer:
The solution's absorbance measures 0.21168.
Explanation:
Provided that,
Wavelength = 500 nm
Molar absorptivity = 252 M⁻¹ cm⁻¹
Moles present = 0.00140
Total solution volume = 500.0 mL
Path length = 3.00 mm
We have to determine the molar concentration
Utilizing the formula for molar concentration
Where N = number of moles
V = volume
Input the values into the formula
Next, we will calculate the solution's absorbance
Using the absorbance formula
Substituting values into the equation
Therefore, the absorbance of the solution is 0.21168.
After four hours of cooling, the soup reached a temperature of 140 F (or) 42 C.
Explanation:
A food worker allowed a cup of soup to cool for two hours,
step 1: The temperature attained in two hours is 70 F (or) 21 C
step 2: Consequently, in four hours, this doubles the value
Therefore, the temperature after four hours is 2(70)= 140 F (or) 2(21)= 42 C
