Answer:
#1 and #3 are balanced equations
Answer:
403 grams
Explanation:
7.21 mol. Fe x (55.86 g Fe / 1 mol. Fe)
=403 grams Fe
<u>Answer:</u> The number of moles of gas present are 0.390 moles
<u>Explanation:</u>
To calculate the number of moles of gas, we use the equation given by ideal gas which follows:
![PV=nRT](https://tex.z-dn.net/?f=PV%3DnRT)
where,
P = pressure of the gas = 0.868 atm
V = Volume of the gas = 11 L
T = Temperature of the gas = ![25^oC=[25+273]K=298K](https://tex.z-dn.net/?f=25%5EoC%3D%5B25%2B273%5DK%3D298K)
R = Gas constant = ![0.0821\text{ L. atm }mol^{-1}K^{-1}](https://tex.z-dn.net/?f=0.0821%5Ctext%7B%20L.%20atm%20%7Dmol%5E%7B-1%7DK%5E%7B-1%7D)
n = number of moles of gas = ?
Putting values in above equation, we get:
![0.868atm\times 11L=n\times 0.0821\text{ L. atm }mol^{-1}K^{-1}\times 298K\\\\n=\frac{0.868\times 11}{0.0821\times 298}=0.390mol](https://tex.z-dn.net/?f=0.868atm%5Ctimes%2011L%3Dn%5Ctimes%200.0821%5Ctext%7B%20L.%20atm%20%7Dmol%5E%7B-1%7DK%5E%7B-1%7D%5Ctimes%20298K%5C%5C%5C%5Cn%3D%5Cfrac%7B0.868%5Ctimes%2011%7D%7B0.0821%5Ctimes%20298%7D%3D0.390mol)
Hence, the number of moles of gas present are 0.390 moles
Answer:
1750L
Explanation:
Given
Initial Temperature = 25°C
Initial Pressure = 175 atm
Initial Volume = 10.0L
Final Temperature = 25°C
Final Pressure = 1 atm
Final Volume = ?
This question is an illustration of ideal gas law.
From the given parameters, the initial temperature and final temperature are the same; this implies that the system has a constant temperature.
As such, we'll make use of Boyle's Law to solve this;
Boyle's Law States that:
P₁V₁ = P₂V₂
Where P₁ and P₂ represent Initial and Final Pressure, respectively
While V₁ and V₂ represent Initial and final volume
The equation becomes
175 atm * 10L = 1 atm * V₂
1750 atm L = 1 atm * V₂
1750 L = V₂
Hence, the final volume that can be stored is 1750L