Alkanes: Calculations & Formulae
Science
GCSE Higher
10 questions
~20 mins
1 views0 downloads
About This Worksheet
A Chemistry worksheet covering Alkanes, focusing on calculations, formulae, and practical applications relevant to GCSE Higher students.
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Alkanes: Calculations & Formulae
Subject: ScienceGrade: GCSE Higher
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Untitled Worksheet
Grade GCSE Higher
A
Concept Review of Alkanes
Answer the following questions to review your understanding of alkanes.
1.
Define an alkane and state its general molecular formula.
[2 marks]2.
Explain why alkanes are considered saturated hydrocarbons.
[2 marks]3.
Describe the mechanism of complete combustion of an alkane.
[3 marks]B
Calculations Involving Alkanes
Solve the following numerical problems related to alkanes.
1.
Calculate the molecular formula of an alkane with a molar mass of 86 g/mol.
[3 marks]2.
If 24 grams of butane (C4H10) undergo complete combustion, how many moles of carbon dioxide are produced? (Atomic masses: C=12, H=1, O=16).
[4 marks]3.
Determine the volume of methane (CH4) at room temperature and pressure (RTP, 24°C, 1 atm) that contains 2 moles of gas.
[4 marks]C
Practical Skills and Industry Applications
Answer the following questions based on theoretical knowledge of practical skills and industry applications of alkanes.
1.
Describe a typical safety precaution that should be taken when handling alkanes in a laboratory setting.
[2 marks]2.
Identify one industrial use of alkanes derived from crude oil.
[2 marks]D
Data Analysis and Application
Interpret the following scenarios related to alkanes and their applications.
1.
A sample of an alkane has a molar mass of 58 g/mol. If 10 grams of this alkane is burned completely, calculate the amount of carbon dioxide produced in moles.
[4 marks]2.
Explain how the increasing use of natural gas (mainly methane) impacts environmental pollution compared to other fossil fuels.
[6 marks]Quick Actions
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Details
- Created
- 1/1/2026
- Updated
- 1/1/2026
- Type
- worksheet