Why I can't select the the number 0.679 as least number during to calculate the mole ratio from given numbers: 1.151, 1.153 and 2.5? And during calculating the mole ratio which number I gotta select from above numbers as least?
In order to determine the least number among the given numbers (1.151, 1.153, and 2.5), you need to compare them.
Comparing the numbers, you can see that 1.151 is the smallest number among the three. Therefore, 1.151 should be selected as the least number when calculating the mole ratio.
It is not clear why you cannot select the number 0.679 as the least number, as this number is not included in the given set. If you have additional information or context, please provide it for further assistance.