Seoul National University, 120 students from Chung-Ang and Kyung-hee Universities, 120 students from Sang-myung and Kwang-woon Universities, and 120 students from Sahm-yook and Kang-nam Universities. The gender ratio per university was 50:50 for both sexes, and students were allocated for this study by the same gender rate per grade. This represents a table is shown below.
Ⅳ. Measurement
Polymer density can be determined by
measuring the volume and weight of
polymer.
Two different methods are used;
(1) Specific Gravity-Bottle Method
(2) Sink-and-Float Method
Measurement of Density
The mass is normally measured with an appropriate scale or balance.
The volume may be measured directly (from the geometry of the object) or by the displacement of a fluid.
Hyd
measures to address procyclicality and raise the resilience of the banking sector in good times. These measures have the following key objectives:
•dampen any excess cyclicality of the minimum capital requirement
•promote more forward looking provisions
•conserve capital to build buffers at individual banks and the banking sector that can be
Measurement of Density
The mass is normally measured with an appropriate scale or balance.
The volume may be measured directly (from the geometry of the object) or by the displacement of a fluid.
Hydrostatic weighing is a method that combines these two.
2. Specific Gravity
It is the ratio of the density (mass of a unit volume) of a substance to the density of a given reference materia
Objective
Chemicals have the chemical property of acidity or alkalinity that is important for safe contact, chemical reaction and physical mixture.
Determination of the acidity-alkalinity by acid-alkali reaction is crucial in the understanding of chemical functions.
The principle of pH meter
Advantage and disadvantage of pH meter
Advantage
Wide measurable range
Need short time to mea