Mass of Fe₂O₃ : 74.26 g
Volume of O₂ at STP = 15.624 L
<h3>Further explanation</h3>Reaction
4Fe (s) + 3O₂ (g) ==> 2Fe₂O₃ (s)
mol Fe :
Ar Fe = 56 g/mol
mol Fe₂O₃ :
mass Fe₂O₃ :
MW Fe₂O₃ : 159,69 g/mol
mol O₂ :
volume O₂ at STP(1 mol=22.4 L)
MgO + 2 LiCl → MgCl2 + Li2O Are all the elements balanced?
2 answers:
<u>Answer:</u> All the elements are balanced in the given chemical equation.
<u>Explanation:</u>
A balanced chemical equation is defined as the equation in which total number of individual atoms on the reactant side is equal to the total number of individual atoms on the product side. These equations follow law of conservation of mass.
The given chemical equation follows:
<u>On reactant side:</u>
Number of magnesium atoms = 1
Number of oxygen atoms = 1
Number of lithium atoms = 2
Number of chlorine atoms = 2
<u>On product side:</u>
Number of magnesium atoms = 1
Number of oxygen atoms = 1
Number of lithium atoms = 2
Number of chlorine atoms = 2
Hence, all the elements are balanced in the given chemical equation.
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Answer:- .
Solution:- Aspartame is a artificial sweetener with molecular formula and it's molecular mass is 294.3 gram per mol.
We have been given with 4.50 mg of aspartame and asked to calculate the moles. For mass to moles conversion we divide the given mass in grams by molar mass.
Since, the mass is given in mg, we need to convert it to g first.
1 mg = 0.001 g
So,
= 0.00450 g
Now let's calculate the moles on dividing the grams by molar mass as:
=
Hence, are present in 4.50 mg of aspartame.