StudentShare solutions

# Reprt - Lab Report Example

## Extract of sample Reprt

The value of Gs is a numerical value with no units and does not depend on which system of units is used since it is a ratio. The specific gravity of liquid is a significant parameter in industrial processes, and it is a factor in most equations that involve weight-volume relationships. For instance if during an industrial process sugar syrup or salt solution is needed, it can be easily determined if the solution has the correct concentration by measuring its specific gravity at a particular temperature. The specific gravity for liquids can be written as: Gs = density of the density (g/cm3)/ density of water (g/cm3) Theory: Specific gravity is the ratio of the density of a fluid to the density of water at a constant temperature. Specific gravity can be calculated directly from the measured density of a liquid divided by the density of distilled water. A suitable alternative method is use a hydrometer. This is a specially calibrated instrument made of a hollow glass float designed to float vertically in liquids of different densities. The depth to which the hydrometer sinks in the liquid represents the density of the liquid. The instrument has a calibrated scale on its stem which is used to read specific gravity. The diameter of the stem determines the sensitivity of the stem. An exceptionally sensitive hydrometer has a thin stem and a large bulb (Frey, 44). Experimental Procedure The glass cylinder was placed on a flat level surface and filled with sample liquid to allow air to rise to the top. The hydrometer was gently lowered into the flask with the bulb end facing down without it coming into contact with the sides of the fluid. The measurements of specific gravity measurements for each of the two fluid samples were taken and recorded with the hydrometer floating freely in the fluid. The hydrometer was removed and the procedure repeated nine times for each of the two liquids. The values of specific gravities were compared. Description of apparatus: Hydrometer, glass cylinders Data: Measurements Sample S Sample E 1 1110 900 2 1120 890 3 1123 870 4 1124 860 5 1110 890 6 1100 900 7 1110 890 8 1120 880 9 1000 900 10 1110 890 average 1102.7 887 Results/calculations: Average specific gravity for sample S = (1110 +1120+ 1123+ 1124 +1110 +1100 +1110 +1120+ 1000+ 1110) /10 =1102.7 Average specific gravity for sample = (900 +890+ 870+ 860+ 890+ 900 +890 +880+900 +890) /10 =887 Conclusion/discussion: The specific gravity of a liquid is the same everywhere since it is the ratio of the density of the liquid to the density of water at 40C whereas density is mass per unit volume. The volume and mass remain constant but weight changes on the moon. The hydrometer sinks deeper in lighter liquids than the heavier ones due to the fact that heavier liquids are denser than lighter ones. In this experiment, the average specific gravity or each of the two liquids is 1102.7 and 887 respectively. Thus, the denser of the liquids, the higher the specific gravity obtained. This explains why it is easier to swim in sea water than swimming pools due to the fact that density of sea water is higher than that of swimming pool water. The existence of salt increases the density of sea water. The specific gravity of fluids was successfully obtained using the hydrometer; thus the goal of the experiment was achieved. Work cited Frey, Walter. ...Show more

## Summary

Name Tutor Institution Subject code Specific gravity Abstract The specific gravity of two liquid samples was measured using a hydrometer. The specific gravity measured was accounted in the buoyancy of each liquid relative to water. Specific gravity was calculated by dividing the density of each liquid sample by the density of the standard substance, distilled water in this case…
Author : twalker
Save Your Time for More Important Things
Let us write or edit the lab report on your topic
"Reprt"
with a personal 20% discount.
Grab the best paper

### Check these samples - they also fit your topic

Financial Analysis of Abiomed Incorporation
The performance of the company in other areas has remained better than the industry and the company seems to be quite safe due to less amount of debt included in its capital structure which can actually prevent it from the likelihood of bankruptcy. Introduction Those companies which suffer some losses and struggle in making their business operations more profitable provide a long term basis for investment especially to those investors who are risk takers.
12 pages (3000 words) Research Paper
Starbucks and Corporate Social Responsibility
Starbucks [SBUX] has takn up th caus fr saf drinking watr, rlling ut ths acrss its US strs. With plans t dnat fiv cnts pr bttl sld, th cmpany is hping t cntribut \$10 millin vr th nxt fiv yars t bst clan-watr supplis in prr cuntris. ths was acquird by Starbucks in April but has bn availabl in th US fr sm tim, in strs such as Whl Fds.
6 pages (1500 words) Case Study
Globalization and Human Right
Globalization tends to refer to the economic systems that have been put into place in order for free trade to occur more easily. However, there is also a different kind of globalization which may be identified as an international "human rights regime". In some sense the idea that occurrences within individual countries are the concern and responsibility of all countries was created with the Nuremberg trials of Nazi war criminals(Shirer, 1960) and the creation of the United Nations, one of whose purposes was to stop such genocide occurring again.
7 pages (1750 words) Essay
Strtegic Mrketing Plan of Amazon

The paper will exаmine thе prоceѕѕ tо mаke а ѕtrаtegic mаrketing plаn thаt ѕtаrtѕ with miѕѕiоn ѕtаtement. Finаlly, thеre will be аn аnаlyѕiѕ оf hоw tо cоntrоl thе plаn аnd implement it. Thе repоrt uѕeѕ thе cоmpаny Аmаzоn.cоm tо develоp thе ѕtrаtegic mаrketing plаn. Аmаzоn.cоm iѕ thе lаrgeѕt оnline retаiler.

11 pages (3000 words) Case Study
Inflation targeting
In the following paper I will discuss inflation targeting as one of central bank's monteray policiy's to regulate stability in the country. First, I will introduce the notion of inflation targeting, then I will look at the literature review of inflation targeting as well as speak aboutunfavorable shocks that make influence the policy, ultimately I will drow on the conlclusion as wether inflation targeting has proved to be a successful strategy in many industrialized countries or that it was only due to the fact that central banks have not been hit by strong unfavorable shocks.
7 pages (1750 words) Essay
Nursing Practice Master Essay
The third is that cnceptual cmpartmentalizatin in science ften leads t a dissciatin with the previus wrk in the field. These things are cnsidered f scientific relevance t the develpment f high quality nursing service. The impetus fr this paper was the idea that the cncept f evidence-based nursing represents smething f a paradx.
8 pages (2000 words) Essay
Fundatn Stage Currculum
Yu mght lke t cmple a mre cmprehensve lst f the changes that have ccurred snce the passng f the 1988 Act and the ways n whch schls have changed t accmmdate these new crcumstances. Because f all the changes that have ccurred t the educatnal system and the mpact these have had n schls, ths bk shuld prve t be essental readng nt nly fr anyne wh s new t teachng but als fr anyne wh s returnng t teachng after a break away frm a prmary schl classrm.
10 pages (2500 words) Essay
Globalization and Human Rights
This paper seeks for an answer to a question: to what extent has "human rights regime" been effectively applied, represent a genuine globalization of the attempt to implement fundamental human rights, and to what extent has its application reflected the balance of the 'interests' of various parties in Rwanda?
6 pages (1500 words) Essay
Imaging Informatics ( Agfa- Impax 6 )
There are several factors responsible for such demand, which include the ability of PACS to distribute the image anytime, anywhere; while the film can get physically eliminated, resulting in reduction of the related costs. Hence, PACS enables the
6 pages (1500 words) Essay
Management reprt
1 The process that was undertaken necessitated selecting only the best suppliers from among many. When they started, the manager revealed that
4 pages (1000 words) Essay
Hire a pro to write