Belair High School Caribbean Advanced Proficiency Examination



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506313806-ABBYSHAY-HAYLE-CAPE-CHEMISTRY-LAB-FULL-2021
50286539-Guidelines-for-Module-One-Essay-Cape-Communication-Studies



Belair High School
Caribbean Advanced Proficiency Examination
Unit 1 Internal Assessment

B elair High School
Subject: CAPE Chemistry Unit 1

All You Need to Know!
Name: ___Abbyshay Gayle_____________________

Lab Write-up
Date: _23__/_10__/___21 Lab No: 1
Module: 1 Forces of Attraction
(Skills Tested: ORR, A&I)


Aim: To determine the type of inter-molecular forces present in various substances


Introduction

You are supplied with four different substances. You are required to determine the type of bonds present in each of the substances.




Procedure



  1. A spatula with load of each substance was placed in a clean dry test tube. Each substance was heated for approximately one minute.

  2. A spatula with half load of each substance was added approximately 10cm3 of distilled water. It was attempted to dissolve the substance.

  3. Steps 2 was repeated but with the use of supplied organic solvent.

  4. Observations were recorded in the table below



Results
Results



Substance

Heating for approximately
1 minute


Attempt to dissolve in water (a polar solvent)

Attempt to dissolve in organic solvent
(non-polar solvent)

Electrical conductivity in solid form

A

High melting point





dissolves

does not dissolve

Does

B

High melting point



does not dissolve

does not dissolves

Good

C

Low melting point



does not dissolve

dissolve slowly

Poor





D



Low melting point



does not dissolve

does not dissolve

Poor

Treatment of results



  1. State the major type of inter- molecular force present in each substance.

    Substance A …………ionic………… Substance C London dispersion forces



Substance B ……Van deer waals…………….… Substance D …………Dispersion………





  1. Based on your observations for substance A, what type of solids would substance A and C most likely be?

Substance A ………ionic………………… Substance C ………Molecular………………….
Substance B ……………crystalline solid
Substance D ………molecular….………………

B elair High School
Subject: CAPE Chemistry Unit 1

All You Need to Know!

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