When you work with molar mass, you solve for the quantity of ''Moles'' within the substance by converting Mass. The way you can tell the equation is balanced would be by knowing whether the moles were equivalent on both sides or not. Therefore, if they are equal, it is balanced considering you have the same amount of moles on each side of the equation.
<h2>Hello!</h2>
The answer is: -97.23° C
<h2>Why?</h2>
Applying the Charles and Gay-Lussac's Law we have that:
Where:
<em>k </em>is the proportionality constant
<em>v</em> is the volume of the gas
<em>t</em> is the temperature of the gas
We also have the following relation:
Since we need to know the new temperature (T2) we can find it using the last equation, so:
We are asked to find the temperature in Celsius degrees, we must convert the result:
Therefore, the temperature is -97.23° C
Have a nice day!
Answer:
1 mole
Explanation:
m(Fe) = 112 g
n(Fe₂O₃) = ?
First you must calculate how many moles of Fe is in 112 g of Fe:
n(Fe) = m(Fe) / Ar(Fe) = 112 g / 55,85 g moles⁻¹ = 2 moles
Now, from reaction you compare moles of Fe and Fe₂O₃ :
2 n(Fe₂O₃) = n(Fe)
n(Fe₂O₃) = n(Fe) / 2 = 1 mole
A solvent and an example would be water because it is polar and has the ability to dissolve many solutes, hence it is referred to as the universal solvent.
