Avogadro's number tells you that in one mol of element (sulfur) there are 6.022x10^23 atoms...
So,
1 mol : 6.022x10^23 = x mol : 1.2x10^2
x = 1.99 x 10^-22 mol
*Although this should be correct, you might want to check your question again. You probably misinterpret the question... you want 1.2x10^23 !! :) check it.
Answer:
1 significant figure:
1000
2 significant figures:
670
0.0093
3 significant figures:
0.184
1.30
4 significant figures:
120.9
1.008
Explanation:
The significant figures of a number written in positional notation are digits that carry meaningful contributions to its measurement resolution. This includes all digits except: all leading zeros.
5 Rules for significant figures:
1: All non-zero numbers ARE significant.
2: Zeros between non-zero numbers ARE significant.
3: Leading zeros are NOT significant.
4: Trailing zeros to the right of the decimal ARE significant.
5: Trailing zeros in a whole number with the decimal shown ARE significant.
Look at the attachments for more examples.
Hope this helps:))
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Answer:
During the process of electrolysis, ions that are formed will get discharged to reform neutral atoms at the state of electrons, whereas the preferential meaning which in case one or more kind of cations and anions in the electrolyte, the one with the higher concentration or at a lower position activity will get discharged first.