Question

One crystalline form of silica (SiO2) has a cubic unit cell, and from X-ray diffraction data it is known that the cell edge length is 0.700 nm. If the measured density is 2.32 g/cm3, how many (a) Si4+ and (b) O2- ions are there per unit cell? The atomic weights of Si and O are, respectively, 28.09 g/mol and 16.00 g/mol.

Name: one crystalline form of silica sio2 has a cubic unit cell and from x ray diffraction data it is known that the cell edge length is 0700 nm if the measured density is 232 gcm3 how many a si4 60512
Uploaded: 2022-10-07T01:39:20-08:00
Duration: 1 min 55 s
Channel: Syon Schlecht
Description: one crystalline form of silica sio2 has a cubic unit cell and from x ray diffraction data it is known that the cell edge length is 0700 nm if the measured density is 232 gcm3 how many a si4 60512

          One crystalline form of silica (SiO2) has a cubic unit cell, and
from X-ray diffraction data it is known that the cell edge length
is 0.700 nm. If the measured density is 2.32 g/cm3, how many (a)
Si4+ and (b) O2- ions are there per unit cell? The atomic weights
of Si and O are, respectively, 28.09 g/mol and 16.00 g/mol.

Added by Angela Q.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Syon Schlecht

10/07/2022

Step 1

Given: 0.700 nm 1 nm = 1 x 10^-7 cm Therefore, 0.700 nm = 0.700 x 10^-7 cm = 7 x 10^-8 cm Show more…

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One crystalline form of silica (SiO2) has a cubic unit cell, and from X-ray diffraction data it is known that the cell edge length is 0.700 nm. If the measured density is 2.32 g/cm3, how many (a) Si4+ and (b) O2- ions are there per unit cell? The atomic weights of Si and O are, respectively, 28.09 g/mol and 16.00 g/mol.