A silicon -containing ore has 92% 28Si, 5% 29Si and 3% 30Si. Calculate the relative atomic mass of the silicon.
Question 1 Report
A silicon -containing ore has 92% 28Si, 5% 29Si and 3% 30Si. Calculate the relative atomic mass of the silicon.
Answer Details
The relative atomic mass of silicon can be calculated as follows:
Relative atomic mass of silicon = (92% * 28Si atomic mass) + (5% * 29Si atomic mass) + (3% * 30Si atomic mass)
where the atomic masses of 28Si, 29Si, and 30Si are, respectively, 28, 29, and 30 atomic mass units (amu).
So, the relative atomic mass of silicon = (92% * 28 amu) + (5% * 29 amu) + (3% * 30 amu)
= (0.92 * 28 amu) + (0.05 * 29 amu) + (0.03 * 30 amu)
= 25.76 + 1.45 + 0.9
= 28.11 amu
Therefore, the relative atomic mass of silicon is 28.11 amu.
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