0
What is the balanced equation for the complete combustion of wax C25H52 in a stream of air?
Wiki User
∙ 10y ago
Hint , in complete combustion
all the carbon ends up as CO2 so 25 CO2
all the hydrogen ends up as water so 26H2O
Work out the number of O2 molecules you need to balance the equation.
C25H52 + 38O2 -> 25CO2 + 26H2O
In reality it is difficult to ensure complete combustion- candles burn with a smokey flame indicating that carbon is not fully oxidised.
Wiki User
∙ 10y ago
Add your answer:
Earn +20 pts
What is the balanced chemical equation for the combustion of C12H26?
The balanced equation would be; C25H52(s) + 38 O2(g) -> 25 CO2(g) + 26 H2O(l)
How do i get the heat of combustion of c25h52?
You're gonna need an enthalpy change of formation table.
What is a chemical formula of candle wax?
Unbalanced: C25H52 + O2 → CO2 + H2O Balanced: C25H52 + 38 O2 → 25 CO2 + 26 H2O
What is the balanced equation for the complete combustion of candle wax C40H82?
Which paraffin wax (including the in-betweens)?2C20H42 + 61O2 -> 40CO2 + 42H2O:C25H52 + 38O2 -> 25CO2 + 26H2O:2C36H74 + 109O2 -> 72CO2 + 74H2O
What is the oxidation number of carbon in c25h52?
2.08
What is the balanced chemical equation for the combustion of C12H26?
The balanced equation would be; C25H52(s) + 38 O2(g) -> 25 CO2(g) + 26 H2O(l)
How do i get the heat of combustion of c25h52?
You're gonna need an enthalpy change of formation table.
Is cabdle is physical change?
I assume you're talking about burning a candle. Nope, it's a chemical change. Candle wax is a chemical, and when you burn the candle, the wax reacts with oxygen in the air to produce carbon dioxide and water vapor (neither of which you can see.) Any smoke you see if simply soot from the burning of the wick. (Looking a little deeper, wax, or paraffin, is a covalently bonded hydrocarbon alkane with the approximate formula C25H52. When it reacts with oxygen in a combustion reaction, the balanced equation for it is: C25H52 + 38O2 --> 25CO2 + 26H2O.)
What is a chemical formula of candle wax?
Unbalanced: C25H52 + O2 → CO2 + H2O Balanced: C25H52 + 38 O2 → 25 CO2 + 26 H2O
What are the reactants of the incomplete combustion of wax?
It is happening in low O2 concentration. it wll form unburnt C atoms.
What is the balanced equation for the complete combustion of candle wax C40H82?
Which paraffin wax (including the in-betweens)?2C20H42 + 61O2 -> 40CO2 + 42H2O:C25H52 + 38O2 -> 25CO2 + 26H2O:2C36H74 + 109O2 -> 72CO2 + 74H2O
What is the oxidation number of carbon in c25h52?
2.08
Molar Enthalpy of Candle Wax C25H52?
-1308.3 kJ
What is the equation for burning a candle?
The equation for burning th candle can be this: Paraffin Wax (C25H52) + Oxygen (O2) → Carbon Dioxide (CO2) + Water Vapor (H2O) Following the similar train of thought, you can see that paraffin wax can be substitute with bees wax, soy wax. The nature of wax can differ, so those the compound. However, the chemical combustion formula stays the same. If you would like to learn more about candle making, please check out our blog post on ohcans candle.
What is the Lewis Dot Formula for Paraffin wax?
#teamhandicap
What is the combustion reactions for C30H62?
Triacontane is similar to candle wax (C25H52) and, when burnt, will produce CO2 and water vapour: 2 C30H62 + 91 O2 -> 60 CO2 + 62 H2O (For the algebraically-minded, the general formula for combustion of any hydrocarbon is: CxHy + (x+y/4) O2 -> x CO2 + y/2 H2O.) Incomplete combustion will produce a mixture of carbon, carbon monoxide, carbon dioxide and water - a bit more complicated! Combustion in air will produce oxides of nitrogen and potentially thousands of amines and other 'nasties'.
What is a chemical change when a candle burns?
CombustionThe chemical change that occurs is that the atoms move around with the chemical change. Whereas the physical change will keep the candle moving in a normal way.Oxidation.The Hydrocarbon composition of the wax varies and is a mix of C20 to C40 so an exact equation can not be given. However, it is a standard combustion reaction. i.e. CxHy + (x + y/4) O2 ---> (y/2) H2O + (x) CO2The little numbers (subscripts) are coefficients. A chemistry reaction is like a math equation: whatever is on one side has to equal whatever is on the opposite side. The coefficients take care of that. They look confusing in the reaction shown because they are letters, but if you stick numbers in there it would be much easier to understand. Let us use an example of C25 which would be C25H52.C25H52 + 38 O2 ------- 25CO2 + 26 H2O + energy (heat and light)When you burn a candle, you are performing simple combustion reactions of this type. The oxygen comes from the air and the heat initially comes from an outside source such as a match. When this combustion reaction happens, it makes water and carbon dioxide as shown as well as heat and light energy. The coefficients tell us how much of each component is used and produced.The wick in a candle is also mainly hydrocarbon with oxygen also present and this also burns though at a much slower rate. When you light the wick, you provide a heat source and oxygen from the air. The smoke formed contains carbon dioxide and water and also some soot from inneficient combustion.
