amino group (usually a general test for amino acids) Xanthoproteic Test Conc. HNO3‚ conc. NaOH For W‚F‚Y (aromatic except for H) Blue to blue-violet Oxidative decarboxylation color & deamination followed by (proline:hydroxypr condensation oline gives a yellow color) Yellow sol’n/ppt. Nitration via SEAr with conc. HNO3‚ orange with excess NaOH Millon’s rgt.(Hg2+ & Hg22+nitrates& nitriles/Hg(NO3)2 in conc. HNO3‚ w/ trace of HNO2/HgSO4‚H2SO4 ‚NaNO2) Hopkins-Cole Test
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funnel Questions Questions 1. Discuss the phenomenon of rain‚ in terms of vaporization and condensation. Is rain-water distilled water? Condensation and vaporization are two processes that are reverse of each other. Condensation is the process of conversion of a gas into liquid and vaporization is the process of converting liquids into gas or vapors. The process of evaporation and condensation occurs in nature for water all the time resulting in earth’s water cycle. The water from earth’s
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| |Cold water plus match |A very light amount of cloud with a little condensation | |Hot water |There was light cloudiness with no condensation | |Hot water plus match |There was little bit clouds with condensation | (5 points) |Score | | |
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formed from a condensation reaction. The isomer isomaltose has two glucose molecules linked through an α bond. Amylose- Amylose is a spiral polymer made up of D-glucose units. This polysaccharide is one of the two components of starch‚ making up approximately 20-30% of the structure. The other component is amylopectin‚ which makes up 70–80% of the structure. Amylase- an enzyme‚ found chiefly in saliva and pancreatic fluid‚ that converts starch and glycogen into simple sugars. Condensation- is water
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Organic Chemistry/Biochemistry 1: Compounds Important to Life • Biologists classify compounds into organic compounds and inorganic compounds. Organic Compound: a compound that is derived from living things and contains carbon Inorganic Compound: a compound generally derived nonliving things • Water Water is an inorganic molecule with unique properties that make it one of the most important compounds for living things. In the water molecule (H2O)‚ the hydrogen and oxygen atoms bond
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and leaves to mixture and is collected by the set up apparatus. In fractional distillation a vigreux column is used. This provides for surface area for condensation to occur. At each condensation event the vapor is enriched in the low boiling point component and the liquid is enriched in the high boiling point component. The surfaces where condensation occurs are called theoretical plates. Separation is more efficient when there are more theoretical plates. Therefore‚ fractional distillation is more
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up of a few main parts: • evaporation (and transpiration) • condensation • precipitation • collection Evaporation: Evaporation is when the sun heats up water in rivers or lakes or the ocean and turns it into vapor or steam. The water vapor or steam leaves the river‚ lake or ocean and goes into the air. Condensation: Water vapor in the air gets cold and changes back into liquid‚ forming clouds. This is called condensation. Precipitation: Precipitation occurs when so much water has
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acids contain the sugar deoxyribose. The only difference between these two sugars is that deoxyribose contains one oxygen atom less than ribose. Pentose sugars are essential because they are involved in linking different nucleotides together by condensation reactions. The Nitrogen-Containing Bases There are two types of bases found in nucleic acids. The purine bases have two nitrogen containing rings‚ while the pyrimidines have only one. In DNA the purines are adenine (A) and guanine (G) and the
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materials are: * polysulphide‚ the very fits type of material‚ this is now deemed ‘old fashioned and rarely used due to demanding technique‚ unpleasant smell and possible toxicity of lead dioxide ingredient. * Polyether * Silicone (condensation-cured) * Silicone (addition-cured) Desirable properties of impression materials: Accurate reproduction of surface detail: requires a low viscosity material allowing it to adapt closely to the hard and soft tissues.
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cirrostratus clouds are present Response Feedback: Yes. Cirrostratus clouds are present. Question 2 10 out of 10 points Particles that serve as surfaces on which water vapor may condense are called: Selected Answer: condensation nuclei Response Feedback: Yes. Condensation nuclei. Question 3 0 out of 10 points On a clear night‚ the minimum temperature drops to 34°F. The following night‚ fog forms early in the evening. It is a good bet the minimum temperature will not be as low because of
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