laboratory measurements

Henry performs a turbidity test in an Environmental Laboratory and records the results in his lab report. The standard deviation of his lab measurements is σ = 1.6 NTU (Naphlametric Turbidity Units). Henry repeats the measurement 5 times and records the mean x &O..

Physical Quantities and their Measurement - The development of chemistry is based upon the systematic approach of the scientists in carrying out different experiments. Scientific theories, inferences and generalizations are made on the observations recorded. The quantitative information i..

Slow reactions are reactions that can be measured in the laboratories. e.g., hydrolysis of est..

Introduction - The concept of limits leads to define and describe continuity and derivative of the function. The continuity of a function has practical as well as theoretical importance. We plot graphs by taking the values generated in the laboratory or collected in the field. We connect ..

This balance consists of a beam and two scale pans (shown in figure below), the beam being balanced at its mid point on a knife-edge. The scale pans also hang on knife edges and rest on the base board. When the balance is not in use the beam rests on the beam support. A Laboratory Bal..

The concept of limits leads to define and describe continuity and derivative of the function. The continuity of a function has practical as well as theoretical importance. We plot graphs by taking the values generated in the laboratory or collected in the field. We connect the plotted p..

Interference of sound waves can be demonstrated using Quincke's tube. It consists of two U-tubes ABCDE and FGH, whose limbs can be inserted telescopically into each other. The tube ABCDE is provided with two side tubes at B and D. The side tube at D is fitted with a rubber tube. A tuning fork of hi..

>Using a slide calliper, the diameter of the pipe and hence, the end correction can be calculated. However, it can also be eliminated by finding the second resonating length as follows: The tuning fork is excited and held over the open end the tube again. The tube is raised further, till the sound ..

Similarly, mean refractive index of material of prism for yellow colour is A spectrometer is used for obtaining pure spectrum of a source in laboratory and calculation of m of material of prism and m of a transparent liquid. It consists of three parts: collimator, which provides a paralle..