Answer:
5E22 atoms/cm³
Explanation:
We need to find the number of moles of silicon per cm³
number of moles per cm³ = density/atomic weight = 2.33 g/cm ÷ 28.09 g/mol = 0.083 mol/cm³.
Since there are 6.022 × 10²³ atoms/mol, then the number of atoms of silicon per cm³ = number of atoms per mol × number of moles per cm³
= 6.022 × 10²³ atoms/mol × 0.083 mol/cm³
= 0.4995 × 10²³ atoms/cm³
= 4.995 × 10²² atoms/cm³
≅ 5 × 10²² atoms/cm³
= 5E22 atoms/cm³
Answer:
12.5%
Explanation:
Compaction ratio= Volume before reduction/volume after reduction
Compaction ratio= 8/1
% reduction in volume= Volume after reduction/Volume before reduction× 100= 1/compaction ratio × 100
% reduction in volume= 1/(8/1) × 100
=12.5
Answer:
The level of the service is loss and the density is 34.2248 pc/mi/ln
Explanation:
the solution is attached in the Word file
Answer:
So 1/Rt=1/4+1/4+1/2=4/4 = 1 so Rtotal=1
