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Sulfur, in its cyclic molecular form having the formula
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Student Solutions Manual for Ball's Physical Chemistry, 2nd
- Associate each of the solids BN, P4S3, Pb, and CaCl2 with one of the following sets of properties. a A bluish white, lustrous solid melting at 327C; the solid is soft and malleable. b A white solid melting at 772C; the solid is an electrical nonconductor but dissolves in water to give a conducting solution. c A yellowish green solid melting at 172C. d A very hard, colorless substance melting at about 3000C.arrow_forwardPhase diagrams for materials that have allotropes can be more complicated than those shown in the chapter. Use the phase diagram for carbon given here to answer the following questions. (a) How many triple points are present and what phases are in equilibrium for each? (b) Is there a single point where all four phases are in equilibrium? (c) Which is more stable at high pressures, diamond or graphite? (d) Which is the stable phase of carbon at room temperature and 1 atmosphere pressure?arrow_forwardArrange the following substances in order of increasing strength of crystal forces: CO2, KCl, H2O, N2, CaO.arrow_forward
- Classify each substance in the table as either a metallic, ionic, molecular, or covalent network solid: Substance Appearance Melting Point Electrical Conductivity Solubility in Water X brittle, white 800 C only if melted/dissolved soluble Y shiny, malleable 1100 C high insoluble X hard, colorless 3550 C none insolublearrow_forwardDescribe the structural units in (a) C (graphite) (b) SiC (c) FeCl2 (d) C2H2arrow_forwardClassify each substance in the table as either a metallic, ionic, molecular, or covalent network solid: Substance Appearance Melting Point Electrical Conductivity Solubility in Water X lustrous, malleable 1500 C high insoluble Y Soft, yellow 113 C None Insoluble Z Hard, white 800 C Only if melted/dissolved solublearrow_forward
- An amorphous solid can sometimes be converted to a crystalline solid by a process called annealing. Annealing consists of heating the substance to a temperature just below the melting point of the crystalline form and then cooling it slowly. Explain why this process helps produce a crystalline solid.arrow_forward8. An element with atomic mass 106.3amu crystallizes in a face–centered cubic unit cell. Its density is 12.9 g/cm3 at 27°C. Calculate the atomic radius of an atom of the element in centimeters.arrow_forwardExplain the phase diagram of CaO-MgO.arrow_forward
- 22. Palladium (Pd) crystallizes in a face-centered cubic lattice with an edge length of 388.8 pm. What is the density of palladium (in g/cm³)? (Molar mass of Pd: 106.42 g/mol; 1 pm = 10-12 m; 1 cm = 10-² m; Avogadro's number: 6.022 x 10²3) %3D a) 0.752 b) 3.01 c) 1.50 d) 6.01 e) 12.0 f) none of the abovearrow_forwardNickel has a face-centered cubic structure and has a density of 8.90 g/cm3. Calculate its atomic radius?arrow_forward1) Palladium (electron configuration is [Kr]4d¹) crystallizes in a face-centered cubic unit cell. its density is 12.0 g/cm³. (NA = 6.02 x 10²³) (a) What is the total mass of palladium atoms contained within one unit cell? (b) Calculate the atomic radius (r) of Pd.arrow_forward
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