The two most common are red phosphorous and white phosphorous. Phosphorus comes in two forms, red and white. This produces phosphorus as a vapour, which is then collected under water. Red phosphorus is made by gently heating white phosphorus to about 250°C in the absence of air. The key difference between red and white phosphorus is that the red phosphorus appears as dark red colored crystals whereas the white phosphorus exists as a translucent waxy solid that quickly becomes yellow when exposed to light.. Phosphorus is a chemical element that occurs in several different allotropes.The most common allotropes are red and white forms, and these are solid ⦠Allotropes of Phosphorus. Smoke may be released from the burn site from the continued burning of white phosphorus or the formation of phosphoric acid. Get ⦠It must be kept from the oxygen in the air. Phosphorus is a nonmetal, solid at room temperature, and a poor conductor of heat and electricity. According to one analysis of data on healthy U.S. adults using NHANES III data collected in 1988â1994, high phosphorus intakes (1,000 mg/day or more) were associated with increased rates of all-cause and cardiovascular mortality in adults through 2006 [ 65 ]. White phosphorus causes severely painful, partial (second degree) to full thickness (third degree) burns, which have a characteristic yellow color and garlic-like odor. I'm not sure how to draw it. It has the formula P4. Red phosphorous is more stable and forms long chains of phosphorous atoms. Apparently each P is connected to three other Phosphorus atoms. Solution: 1) Convert density to g/L: 0.6388 kg/m 3 = 638.8 g/m 3. White Phosphorus is a translucent white solid , is poisonous and insoluble in water. I'm pretty sure this isn't correct though. White phosphorus is more reactive than red phosphorus. I'm supposed to draw the lewis structure for P4. MEDIUM. Chemically, white phosphorus is more reactive than red phosphorus; It is polymeric and consists of chains of P 4 tetrahedra linked together as shown in the figure given below; Black Phosphorus properties: α-black and β-black are two forms of black phosphorus. White phosphorous is a common form, but it is not very stable. 2) Use a rearrangement of PV = nRT to solve for the molar mass: Since 1 m 3 = 1 x 10 3 dm 3. d = 638.8 / 1 x 10 3 = 0.6388 g / dm 3. COVID-19 is an emerging, rapidly evolving situation. Problem #3: At 100.0 °C and 120.0 torr, the mass density of phosphorus vapor is 0.6388 kg/m 3.What is the molecular formula of phosphorus under these conditions? View Answer. (2,4) Conversion Factors: Reason Red phosphorus contains tetrahedral units linked to one another to form linear chains. Red phosphorus is harmless but the white form is highly toxic and reacts violently with oxygen, so ⦠It glows in the dark (Chemiluminiscence). Elemental phosphorous comes in a variety of forms, called allotropes. Phosphorus occurs in at least 10 allotropic forms, the most common (and reactive) of which is so-called white (or yellow) phosphorus which looks like a ⦠The chemical symbol for white phosphorus is P; the vapor has the formula P 4 and the molecular weight is 124.0 g/mol. White phosphorus is manufactured industrially by heating phosphate rock in the presence of carbon and silica in a furnace. , It is less stable and hence , more reactive. Phosphorus | P | CID 5462309 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more. I'm doing a problem set for Chemistry II involving Lewis Structures. (2) White phosphorus has a garlic-like odor. * Breast milk, formula, and food should be the only sources of phosphorus for infants. 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