Answer:
m = 176.12 g
Explanation:
Let's write the reaction again:
Mg(s) + 2HCl(aq) --------> MgCl₂(aq) + H₂(g)
This reaction is a simple displacement reaction, in this case, the magnesium is displacing the atoms of hydrogens to form MgCl₂. 1 mole of Mg reacts with 2 moles of HCl. If the magnesium is the limiting reactant, we need to calculate the theorical yield of MgCl₂. The mole ratio between these two is 1:1 so, all we have to do is calculate the moles of magnesium and then the moles of MgCl₂:
moles Mg = 45 / 24.3 = 1.85 moles
As the mole ratio is 1:1 then:
moles Mg = moles MgCl₂ = 1.85 moles
Now, we calculate the mass using the molecular mass:
m = 1.85 * 95.2
m MgCl₂ = 176.12 gThis is the theorical yieldThe theoretical yield of MgCl₂ obtained from the reaction is 176.3 g
We'll begin by calculating the mass of the Mg that reacted and the mass of MgCl₂ produced from the balanced equation.
Mg(s) + 2HCl(aq) —> MgCl₂(aq) + H₂(g)
Molar mass of Mg = 24.3 g/mol
Mass of Mg from the balanced equation = 1 × 24.3 = 24.3 g
Molar mass of MgCl₂ = 95.2 g/mol
Mass of MgCl₂ from the balanced equation = 1 × 95.2 = 95.2 g
SUMMARY:
From the balanced equation above,
24.3 g of Mg reacted to produce 95.2 g of MgCl₂
Finally, we shall determine the theoretical yield of MgCl₂.From the balanced equation above,
24.3 g of Mg reacted to produce 95.2 g of MgCl₂
Therefore,
45 g of Mg will react to produce = (45 × 95.2)/24.3 = 176.3 g of MgCl₂
Thus, the theoretical yield of MgCl₂ is 176.3 g
Learn more: https://brainly.com/question/14398319
A prostate might be prescribed a total dose ionizing radiation of 72 Gy. In traditional units of rad, how many rad have been prescribed?
Answer:
7200RAD
Explanation:
Note
100RAD=1GY
Hence 72GY=7200RAD
Li20 + MgCl2 → 2LiCl + Mgo
Name the second reactant:
Name the first product:
How many Lithiums on the product side?
Answer:
1. magnesium chloride
2. lithium chloride
3. 2
Explanation:
Know how to figure names (their are rules, be familiar with them)
Count the number
- Hope that helps! Let me know if you need further explanation.
Final answer:
In the reaction Li2O + MgCl2 → 2LiCl + MgO, the second reactant is magnesium chloride (MgCl2), the first product is lithium chloride (LiCl), and there are 2 lithium atoms on the product side.
Explanation:
The chemical reaction you are referring to is Li2O + MgCl2 → 2LiCl + MgO. In compliance with your question:
The second reactant in the equation is magnesium chloride (MgCl2).The first product of this reaction is lithium chloride (LiCl).On the product side, there are 2 lithium (Li) atoms, as indicated by the coefficient in front of LiCl.It's essential to note that in a balanced chemical equation, the number of atoms of each element must be the same on both the reactants and the products side.
Is it possible for a heat transfer system to involve both internal and external convection simultaneously?
Answer:
When the fluid is forced to flow over a surface it is external forced convection. When the fluid is forced to flow in a tube it is Internal forced convection. It is possible to have both Internal and external convection simultaneously as is case of pipe transporting a fluid in a windy area.
Explanation: