Nt1310 Unit 3 Lab Report

Task 4
Report outlining the function of;
Microscope
A microscope is an instrument which allows you to see things that the human eye cannot see nakedly. The simple function of a microscope is to magnify the specimen which is placed under it. Some microscopes are so strong that they can allow us to see things such as cells inside leaves and the internal structures of them.
Balance
The function of a balance is to measure the weight of a substance. They come in different accuracies and sensitivities. Spring scales measure weight by balancing the force of gravity against the force on the spring inside the scales, whereas a balance or pair of scales using a balance beam compares masses by balancing the weight due to the mass of an object against the weight of a known mass or masses. A digital spring balance will be much more accurate than a balance beam.
PH meter
A PH

It consists of a graduated glass tube with a stopcock (a tap) at one end.
Colorimeter
A colorimeter is a device used in colorimetry, it refers to a device which measures the absorbance of particular wavelengths of light in a solution, and gives us a numerical value.
Multimeter
A multimeter is an electronic measuring instrument which holds the ability to measure several functions all in one small handheld unit. A standard multimeter can usually measure; voltage, current, and resistance.

Practical carried out Instruments used Reasons why these instruments were chosen
Serial dilutions Colorimeter
Graduated pipette We used a colorimeter so that instead of getting an answer which told us whether the substance was absorbent or not. Were gained a result telling us how absorbent the substance was with an accurate numerical value.
We used a graduated pipette as this instrument accurately measures small volumes of liquid, which is what we were dealing