<u>Answer:</u> The amount of heat released for 5.25 moles of hydrogen peroxide decomposed is 1032.15 kJ
<u>Explanation:</u>
We are given:
Heat released in the reaction = 196.6 kJ per mole of hydrogen peroxide
Heat released for 2 moles of hydrogen peroxide decomposed =
<u>Sign convention of heat:</u>
When heat is absorbed, the sign of heat is taken to be positive and when heat is released, the sign of heat is taken to be negative.
The chemical equation for the decomposition of hydrogen peroxide follows:
We are given:
Moles of hydrogen peroxide decomposed = 5.25 moles
By Stoichiometry of the reaction:
2 moles of hydrogen peroxide decomposed, the amount of heat released is 393.2 kJ
So, when 5.25 moles of hydrogen peroxide decomposed, the amount of heat released will be =
Hence, the amount of heat released for 5.25 moles of hydrogen peroxide decomposed is 1032.15 kJ
<u>Answer:</u>
<em>The mole to mole ratio between oxygen gas and water is 2 : 1</em>
<em></em>
<u>Explanation:</u>
Balancing is making the number of atoms of each element same on both the sides (reactant and product side).
To find the number of atoms of each element we multiply coefficient and the subscript
For example
contains
5 × 1 = 5 ,Ca atoms and
5 × 2 = 10, Cl atoms
If there is a bracket in the chemical formula
For example
we multiply coefficient × subscript × number outside the bracket to find the number of atoms
(Please note: 3 is the coefficient, and if there is no number given then 1 will be the coefficient )
So
3 × 3 = 9 , Ca atoms
3 × 1 × 2 = 6, P atoms
3 × 4 × 2 = 24, O atoms are present.
So
The balanced chemical equation is
The number which stands in front of the chemical formula is the coefficient and it represents the number of moles of each substance.
So we see here 2 is the coefficient of and 1 is the coefficient of
So the mole ratio of water and oxygen gas is 2 : 1
(Answer)
Answer:
2.5moles of Fe(OH)3
Explanation:
i don't know how to explain this
A. 6.59kj is the answer.
There you go!