Consider a hypothetical metal that has a density of 12.7 g/cm3, an atomic weight of 135.9...

Consider a hypothetical metal that has a density of 12.7 g/cm³, an atomic weight of 135.9 g/mol, and an atomic radius of 0.129 nm. Compute the atomic packing factor if the unit cell has tetragonal symmetry, with a and c parameters 0.452 and 0.348 nm, respectively.

Expert Solution

queen_honey_blossom answered 2 years ago

Consider a hypothetical metal that has a density of 8.40 g/cm3, an atomic weight of 108.6...

Consider a hypothetical metal that has a density of 8.40 g/cm3, an atomic weight of 108.6 g/mol, and an atomic radius of 0.136 nm. Compute the atomic packing factor if the unit cell has tetragonal symmetry; values for the A and C lattice parameters are 0.494 and 0.352, respectively.

The density of sodium is 0.971 g/cm3 and it has an atomic weight of 22.9897 g/mol....

The density of sodium is 0.971 g/cm3 and it has an atomic weight of 22.9897 g/mol. Each sodium atom contributes one valence electron to the metal, so the number of electrons per unit volume, N/V, is equal to the number of sodium atoms per unit volume. a) Calculate the number density of atoms per unit volume, N/V. b) Calculate the Fermi energy of sodium. c) Calculate the Fermi temperature. d) At room temperature (298 K), calculate the chemical potential. ...

The density of a certain metal is 3.594 g/cm3 and the metal atom radius is 217.3...

The density of a certain metal is 3.594 g/cm3 and the metal atom radius is 217.3 pm. If the metal crystallizes in a body-centered cubic structure, which choice is closest to the atomic mass? (a) 136.8 g/mol (b) 273.5 g/mol (c) 164.2 g/mol (d) 184.9 g/mol (e) 181.1 g/mol

1. Listed below are the atomic weight, density, and atomic radius for three hypothetical alloys. For...

1. Listed below are the atomic weight, density, and atomic radius for three hypothetical alloys. For each determine its crystal structure and then justify your determination. Alloy // Atomic weight (g/mol) // Density (g/ cm^3) // Atomic Radius (nm) A // 43.1 // 6.4 // 0.122 B // 184.4 // 12.3 // 0.146 C // 91.6 // 9.6 // 0.137

1.453 moles of a metal with a density of 10.49 g / cm3 (STP) and a...

1.453 moles of a metal with a density of 10.49 g / cm3 (STP) and a temperature of 23.35oF, is placed in a calorimeter isolated from the environment that contains 87.35mL of pure ethanol (density 0.9988 g / mL) and that is at 50.50oF. a) Determine the equilibrium temperature of the system.

Question:1 Calculate the density, in g/cm3, of a metal that has a volume of 41.3 L...

Question:1 Calculate the density, in g/cm3, of a metal that has a volume of 41.3 L and a mass of 70.05 kg. Question:2 You have 20.0 L of a 8.18% by volume (% v/v), water-based dye solution. Calculate the volume of pure dye and water that were used to prepare the solution. You may assume that volumes are additive. Question:3 How many mL of pure (100.0%) food dye are needed to prepare 437.4 mL of 34.8% by volume (%v/v) food...

The density of osmium (the densest metal) is 22.57 g/cm3. If a 1.00-kg rectangular block of...

The density of osmium (the densest metal) is 22.57 g/cm3. If a 1.00-kg rectangular block of osmium has two dimensions of 4.00 cm x 4.00 cm, calculate the third dimension (in cm) of the block. Watch significant figures.

Potassium has a density of 0.86 g/cm^3, an atomic weight of 39.0983 g/mol, and contains 0.012%...

Potassium has a density of 0.86 g/cm^3, an atomic weight of 39.0983 g/mol, and contains 0.012% of Potassium-40 which is radioactive by beta-decay with a half-life of 1.25x10^9 years. a. What is the total and average binding energy of potassium-40? b. If the average mass of potassium within the human body is about 140 g, estimate the average activity (in bq) of [40,19] K in the body.

The density of aluminum metal is 2.70 g/mL, the atomic mass 26.98 g/mol, the radius of...

The density of aluminum metal is 2.70 g/mL, the atomic mass 26.98 g/mol, the radius of an aluminum atom is 143 picometer and the packing density is 74% theory. Compute Avogardo's number from these data and briefly outline your reasoning/strategy.

The molecular weight of ethanol (CHgCHzOH) is 46 and its density is 0.789 g/cm3. A. What...

The molecular weight of ethanol (CHgCHzOH) is 46 and its density is 0.789 g/cm3. A. What is the molarity of ethanol in beer that is 5% ethanol by volume? [Alcohol content of beer varies from about 4Vo (lite beer) to B% (stout beer). B. The legal limit for a driver's blood alcohol content varies, but 80 mg of ethanol per 100 mL of blood (usually referred to as a blood alcohol level of 0.08) is typical. What is the molarity...

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