Hi just wanted to say thank you for answering my question and I wanted to help so I believe the answer is A.
Answer:
<u>d) 1.8 atm</u>
Explanation:
<u>According to Boyle's Law,</u>
Here, we are given :
- <u>P₁ = 1.5 atm</u>
- <u>T₁ = 25°C = 298 K</u>
- <u>T₂ = 75°C = 348 K</u>
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<u>Solving</u>
- P₂ = P₁T₂/T₁
- P₂ = 1.5 x 348 / 298
- P₂ = 522/298
- P₂ = <u>1.8 atm</u> (approximately)
The moles of oxygen required to burn Butane is 6 moles.
<h3>What is a Combustion Reaction?</h3>
A reaction in which fuel gets oxidised by an oxidising agent producing a large amount of heat is called a combustion reaction.
In this question
Butane is burnt with oxygen
Molar mass of C₄H₁₀ = (12.0×4 + 1.0×10) g/mol = 58.0 g/mol
Molar mass of O₂ = 16.0×2 g/mol = 32.0 g/mol
Balanced equation for the reaction:
2C₄H₁₀ + 13O₂ → 8CO₂ + 10H₂O
Mole ratio C₄H₁₀ : O₂ = 2 : 13
The given mass = 54grams
moles = 54/58 = 0.93 moles
The mole of oxygen required =
0.93/ x = 2/13
0.93*13/2 = x
x = 6.045 moles
Therefore 6 moles of oxygen are required to burn Butane.
To know more about Combustion Reaction
brainly.com/question/12172040
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The boiling point of chloroform is 61.2 C or 142.2 F. Please mark as brainliest if this helped you out :).
D. uranium: atomic number 92, mass 238, neutrons 146
238-92=146
