NaBH4 + 2H2O -> NaBO2 + 4H2 [1]
DeltaG(298K)= -299 kJ/mol BH4
DeltaH(298K)= -231 kJ/mol BH4
(10.8 mass% H)
NaBH4 + 4H2O -> NaB(OH)4 + 4H2 [2]
DeltaG (298K)= -315 kJ/mol BH4
DeltaH = -247 kJ/mol BH4
(7.28 mass% H)
NaBH4 + 6H2O -> NaB(OH)4.2H2O [3]
DeltaG = -319kJ/mol BH4
DeltaH = -213 kJ/mol BH4
(5.48 mass% H)
*Hydrolysis in Eq.[1] is not the most favorable reaction!
By applying formula, actual yield/theoretical yield (100)
For the manufacture of urea, ammonia is reacted with carbondioxide, that results in yield of urea with water as a by-product. The balanced chemical equation for the said reaction is as under : 2NH3 + CO2 ------> (NH2)2CO+H2O
The percent yield is the ratio of the actual yield to the theoretical yield. A mole ratio is a conversion factor derived from the coefficient of a balanced chemical equation interpreted in terms of moles.
The name of the arrow in a Chemical Equation is called the yield.
P2o5+3h2o--->2h3po4
By applying formula, actual yield/theoretical yield (100)
For the manufacture of urea, ammonia is reacted with carbondioxide, that results in yield of urea with water as a by-product. The balanced chemical equation for the said reaction is as under : 2NH3 + CO2 ------> (NH2)2CO+H2O
You must first calculate the theoretical yield of your product using the balanced equation. The crude yield is divided by the theoretical yield and multiplied by 100.
The percent yield is the ratio of the actual yield to the theoretical yield. A mole ratio is a conversion factor derived from the coefficient of a balanced chemical equation interpreted in terms of moles.
The name of the arrow in a Chemical Equation is called the yield.
The actual yield of a reaction product is always less than the yield from the chemical equation. This is because of error.
Reactants. They are on the left side of the yield sign in a chemical equation and on the other side is the product.
P2o5+3h2o--->2h3po4
- which are the reactants- which are the products- which is the theoretical yield
Reactants. They are on the left side of the yield sign in a chemical equation and on the other side is the product.
Reactants. They are on the left side of the yield sign in a chemical equation and on the other side is the product.
It is impossible to balance that equation.