2H2S(g)⇌2H2(g)+S2(g) I have calculate my delta H which is 168.9 kj/ mol but I ... Given the equation: 6CO2(g) + 6H2O(l) -> C6H12O6(s) + 6O2(g ...
Are you doing a research on C5 burning?I am Zy from China.
Answer:
When writing equation the mass on left side of equation must be equal to the mass on right side. True
Explanation:
The chemical reactions always follow the law of conservation of mass.
Law of conservation of mass:
According to the law of conservation mass, mass can neither be created nor destroyed in a chemical equation.
Explanation:
This law was given by french chemist Antoine Lavoisier in 1789. According to this law mass of reactant and mass of product must be equal, because masses are not created or destroyed in a chemical reaction.
For example:
In photosynthesis reaction:
6CO₂ + 6H₂O + energy → C₆H₁₂O₆ + 6O₂
there are six carbon atoms, eighteen oxygen atoms and twelve hydrogen atoms on the both side of equation so this reaction followed the law of conservation of mass because total mass is equal on both side of equation.
Answer: 1739.6g
Explanation:
P1 = 7.04MPa
T1 = 25°C = 25 + 273 = 298K
n1 = 150mol
P2 = 2MPa
T2 = 19°C = 19 + 273 = 292K
n2 =?
n1T1/P1 = n2T2/P2
(150x298)/7.04 = (n2x292)/2
7.04xn2x292 = 150x298x2
n2 = (150x298x2) /(7.04x292)
n2 = 43.49moles
Molar Mass of Ar = 40g/mol
Mass = n x molar Mass = 43.49x40 = 1739.6g