Answer:
1. Theoretical yield = 2.03g
2. Actual yield 1.89g
Explanation:
Let us write a balanced equation. This is illustrated below:
Zn + 2HCI —> ZnCl2 + H2
Molar Mass of HCl = 1 +35.5 = 36.5g/mol
Mass of HCl from the balanced equation = 2 x 36.5 = 73g
Molar Mass of H2 = 2x1 = 2g/mol
1. From the equation,
73g of HCl produced 2g of H2.
Therefore, 74g of HCl will produce = (74 x 2)/73 = 2.03g
Therefore, theoretical yield = 2.03g
2. %yield = 93%
Theoretical yield = 2.03g
Actual yield =?
%yield = Actual yield /Theoretical yield x100
Actual yield = %yield x theoretical yield
Actual yield = 93% x 2.03 = (93/100)x2.03 = 1.89g
Actual yield =1.89g
Sn + 2Cl2 ---> Sn⁺⁴Cl⁻¹4
2 mol 1 mol
2.85 mol x
x=(2.85*1)/2=1.425≈1.43 mol SnCl4
This is because some Richer scales are programed or made differently in the factory therefore effecting ones ability to scale an Earth Quake
Reactivity; is the chemical property that describes the likelihood and a rate at which a substance undergoes a chemical change or a chemical reaction. A chemical change is the process by which a substance becomes a new and different substance. A chemical reaction occurs when a substance undergoes chemical changes to form a new substance.
It is a hard metal but is brittle at room temperature