Sodium chloride has a density of 2.17 g/cm3. What is the closest Na+...Cl- separation? Be sure...

Sodium chloride has a density of 2.17 g/cm3. What is the closest Na+...Cl- separation? Be sure your answer is given in picometers.

Solutions

Expert Solution

density = 2.17 g/cm^3

density = Z M / N a^3

2.17 = 4 x 58.5 / (6.023 x 10^23 x a^3)

a^3 = 1.790 x 10^-22

a = 5.64 x 10^-8 cm

closest Na+...Cl- separation = a / sqrt(2)

= 5.64 x 10^-8 / sqrt(2)

= 3.98 x 10^-8 cm

= 398 pm

queen_honey_blossom answered 1 year ago

Next > < Previous

Related Solutions

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. ...

Sodium chloride (NaCl) exhibits predominantly ionic bonding. The Na+ and Cl- ions have electron structures that...

Sodium chloride (NaCl) exhibits predominantly ionic bonding. The Na+ and Cl- ions have electron structures that are identical to which two inert gases? Na+ has the same electron configuration as neon. Cl- has the same electron configuration as argon. Na+ has the same electron configuration as argon. Cl- has the same electron configuration as xenon. Na+ has the same electron configuration as xenon. Cl- has the same electron configuration as neon.

The separation between neighboring Na+ and Cl- ions in crystal of NaCl is 0.281 nm, whilst...

The separation between neighboring Na+ and Cl- ions in crystal of NaCl is 0.281 nm, whilst the separation between neighboring Na ions in metallic sodium is 0.372 nm. Given that the ionic radius of Cl- is 0.181 nm, determine the radius of the Na+ ions in each case. Explain why the values are different.

Calculate the density (in g/cm3) of an AX compound given that it has the rock salt...

Calculate the density (in g/cm3) of an AX compound given that it has the rock salt crystal structure and that the radii of the A and X ions are 0.137 and 0.241 nm, respectively. Assume atomic weights of 30.7 and 100.2 g/mol for the A and X elements, respectively.

A sample of concrete with a density of 2.35 g/cm3 has a hydrogen content of 0.0085...

A sample of concrete with a density of 2.35 g/cm3 has a hydrogen content of 0.0085 weight fraction. a) what is the atom density of hydrogen in the concrete? b) what is the atom density of hydrogen in water at room temperature? c) how do these numbers compare (comment)?

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.

The average density of planet earth is 5.52 g/cm3. Knowing that Earth has a mass of...

The average density of planet earth is 5.52 g/cm3. Knowing that Earth has a mass of 5.97*10^27g, determine the earth radius in miles. ( 1 mile = 1609 meters).

A 10.0m solution of NaOH has a density of 1.33 g/cm3 at 20 °C. Calculate the...

A 10.0m solution of NaOH has a density of 1.33 g/cm3 at 20 °C. Calculate the mole fraction, weight percent (%), and molarity (M) of NaOH? Mole fraction = Weight percent = % Molarity = M

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.

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...

Subjects