How you're going to answer this question is by doing a mole t - chart first you're going to put 2.40 mol of C8H18 opposite of the mol then you're going to find o2 which 256 on the bottom then multiply across to get the answer.
Hope this help, message me if you need more help
It basically works like this:
You dry out the food
put it in this ceramic oven thingy surrounded with water
burn the food
the water will heat up
measure the water temperature in f
= calories
Calorimetry is the science or act of measuring changes in state variables of a body for the purpose of deriving the heat transfer associated with changes of its state due, for example, to chemical reactions, physical changes, or phase transitions under specified constraints.
in this case, you're finding the amount of energy is contained within it when combusted
There is 2 atoms in one molecule of sulfuric acid. (Hence the sub-scripted 2 that is next to the H in the sulfuric acid equation)
mass O₂ required : 0.054 g
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Further explanation
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The reaction equation is the chemical formula of reagents and product substances
A reaction coefficient is a number in the chemical formula of a substance involved in the reaction equation. The reaction coefficient is useful for equalizing reagents and products
Reaction
4Fe(OH)⁺ (aq) + 4OH⁻ (aq) + O₂ (g)+ 2H₂O (l)⇒ 4Fe(OH)₃ (s)
To precipitate Fe²⁺(in Fe(OH⁺) to Fe³⁺(in Fe(OH)₃)
mol ratio from equation = mol O₂ :mol Fe(OH) = 1 : 4
Answer:
g x 334 J/g = 3340J or 3.34kJ.
Explanation:
