1. What is the ideal solvent for crystallization of a particular compound? What is the primary consideration in choosing a solvent for crystallizing a compound? volatile in order to be easily removed from the purified crystals. In selecting a solvent consider that like likes like. Polar compounds dissolve polar compounds and non-polar compounds dissolve non-polar compounds. Solvent will dissolve a large amount of the impure compound at temperatures near the boiling point of the solvent the compound
Premium Solubility Solvent Chemical polarity
SECTION A Answer any FOUR questions from this section. Each question carries 10 marks. 1. For each of the independent situations described below‚ list the accounting principle or concept that has been violated and give your explanation. (10 marks) i. Raymond Company has been adopting different methods to calculate depreciation on its motor vehicles for the past 4 years. ii. In estimating the provision for doubtful debts‚ the accountant of Peter Limited prefers to have a provision
Premium Generally Accepted Accounting Principles Income statement Depreciation
The Building of a New Nation Following the Civil War‚ the United States was a country that had experienced great loss and had gone to great lengths to either maintain or abolish slavery. As a nation‚ they were given the difficult task of repairing the damaged country as a whole‚ but especially the south and its economy. Their job was to not only to restore the country‚ but to modernize it and make it stronger compared to other nations. The task presented to the United States‚ its president‚ and
Premium American Civil War United States Southern United States
the entire process consists of significant pre-purchase inspection issues. This article will highlight those various issues along with mechanic’s dilemma who perform the inspection and identify some high level recommendations before purchasing aircraft because pre-buy prevention is better than all unwanted lawsuit hassles. First of all‚ I think one should make sure that they are not just making an airworthy inspection of the aircraft during their pre-buy inspection but looking for additional maintenance
Premium Performance Lawsuit Economics
Western Civilization February 8‚ 2009 The Battle of Thermopylae From Herodotus’ The Histories The Battle of Thermopylae‚ which Herodotus recorded in his writing The Histories‚ was one of the most arduous and notable battles of western history. Herodotus was an extremely significant historian who lived during the 5th century B.C. In this primary source writing‚ he portrays how Xerxes was superstitious and tyrannical‚ how the battle
Premium Battle of Thermopylae Sparta
While history is the study of past events‚ particularly related to human affairs and activities‚ the Oxford dictionary defines philosophy as‚ “the study of the fundamental nature of knowledge‚ reality‚ and existence‚ especially when considered as an academic discipline.” From the definition itself‚ one can easily see areas that overlap between these two disciplines. When Dionysius of Halicarnassus said‚ “History is philosophy learned from examples”‚ he certainly meant that studying about the history
Premium Learning Epistemology Philosophy
In History from Things: Essays on Material Culture‚ Jules David Prown explains that he believe the true definition of material culture is the manifestations of culture through material productions. He believed human-made objects “reflect‚ consciously or unconsciously‚ direct or indirect belief of someone’s belief through an object.” Jules also defined art as a “primary initial purpose” which becomes important when viewers are trying to appreciate art. Jules found art to be more than history. It can
Premium Woman Art Aesthetics
Pre-Eclampsia When a woman finds out that she is pregnant she usually dreams about a perfect pregnancy‚ with a perfect delivery‚ and a healthy baby that gets to come home with you after a Twenty-four hour hospital stay‚ but unfortunately it does not always turn out that way. Pre-eclampsia is a disorder in a pregnant woman who develops high blood pressure and protein in the urine after 20 weeks gestation. Pre-eclampsia is very dangerous and can change rapidly into life threatening disorders such
Premium Childbirth Pregnancy Obstetrics
The most apparent use of clothing in precolonial Yorubaland was protection from weather elements‚ and preventing nakedness and voyeurism. According to Oguniran‚ clothing also served to project identity--anything ranging from gender‚ status‚ and age (Oyeniyi 43). Lighter colors were worn during warmer seasons and usually consisted of wearing a wrapper on the lower half of the body and leaving the upper half of the body bare. Yoruba cloth was also worn during various occasions. Based on Oguniran’s
Premium Sociology Culture Clothing
The Silk Road was an important trade network that established cross-cultural trade; people from Han China all the way to the Roman Empire were involved. The Roads came around at about 200 B.C.E‚ and persisted for another 1‚700 years. Luxury goods‚ religions‚ diseases‚ food‚ and ideas have emerged within that time. The Silk Road and its trade remain constant even though its patterns of interaction have been altered through the plague and Islam‚ Christianity‚ and Buddhism. Over time‚ the Silk Roads’
Premium Black Death Silk Road