Mass of 250 g packet of breakfast has to be expressed in terms of ounces. Concept Introduction: Measurement is the measure of quantity, capacity, dimensions or extent of something. Mass, length, pressure, temperature, volume, time and concentration are some common type of measurements. English system and metric system are two types of measurement systems that are in use in the United States. Measurement wise both English system and metric system are precise. There are instance where measurements from one system has to be changed to their equivalent in other system. This is done by dimensional analysis, which involves conversion factors. Conversion factor is a ratio that indicates how one unit of measurement is related to another unit of measurement. This can be expressed as shown below; Conversion factor = Units required units given

Question

Part 1. Draw monomer units of the following products and draw their reaction mechanism 1) Bakelite like polymer Using: Resorcinol + NaOH + Formalin 2) Polyester fiber Using a) pthalic anhydride + anhydrous sodium acetate + ethylene glycol B)pthalic anhydride + anhydrous sodium acetate + glycerol 3) Temporary cross-linked polymer Using: 4% polyvinyl alcohol+ methyl red + 4% sodium borate

Answer 1

Question

Chapter F, Problem A.1BST

Interpretation Introduction

Interpretation:

Mass of 250 g packet of breakfast has to be expressed in terms of ounces.

Concept Introduction:

Measurement is the measure of quantity, capacity, dimensions or extent of something. Mass, length, pressure, temperature, volume, time and concentration are some common type of measurements. English system and metric system are two types of measurement systems that are in use in the United States. Measurement wise both English system and metric system are precise. There are instance where measurements from one system has to be changed to their equivalent in other system. This is done by dimensional analysis, which involves conversion factors. Conversion factor is a ratio that indicates how one unit of measurement is related to another unit of measurement. This can be expressed as shown below;

Conversion factor=Units requiredunits given

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