Answer:
Theoretical yield of hydrogen is 1.11 g
Explanation:
Balanced equation, ![Mg+2HCl\rightarrow MgCl_{2}+H_{2}](https://tex.z-dn.net/?f=Mg%2B2HCl%5Crightarrow%20MgCl_%7B2%7D%2BH_%7B2%7D)
As Mg remain present in excess therefore HCl is the limiting reagent.
According to balanced equation, 2 moles of HCl produce 1 mol of
.
Molar mass of HCl = 36.46 g/mol
So, 40.0 g of HCl =
of HCl = 1.10 moles of HCl
Hence, theoretically, number of moles of
are produced from 1.10 moles of HCl = ![(\frac{1}{2}\times 1.10)moles=0.550moles](https://tex.z-dn.net/?f=%28%5Cfrac%7B1%7D%7B2%7D%5Ctimes%201.10%29moles%3D0.550moles)
Molar mass of
= 2.016 g/mol
So, theoretical yield of
= ![(0.550\times 2.016)g=1.11g](https://tex.z-dn.net/?f=%280.550%5Ctimes%202.016%29g%3D1.11g)
Answer:
Soils are a function of the five soil-forming factors: climate, organisms, relief, parent material, and time. Each of these factors range on a continuum, so the different soils of the world number in the thousands. Soil scientists recognize 12 major orders of soils.
Explanation:
The balanced equation that illustrates the reaction is:
2C4H6 + 11O2 ......> 8CO2 + 6H2O
number of moles = mass / molar mass
number of moles of oxygen = 2.1 / 32 = 0.065625 moles
Now, from the balanced equation, we can note that:
11 moles of oxygen are required to produce 6 moles of water.
Therefore:
0.065625 moles of oxygen will produce:
(0.065625*6) / 11 = 0.03579 moles of water
number of moles = mass / molar mass
mass = number of moles * molar mass
mass of water = 0.03579 * 18 = 0.644 grams
Answer:
Electrons
Explanation:
Atoms can combine together and share electrons between them. Atoms that share electrons are linked to each other in a form, called a molecule that is in a lower energy state than either of the separate atoms alone.
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