(3) nuclear fission
Hope I helped!
It would be 5g of glucose solution
Significant figures means the number of important figures, 0 not included.
This means that the answer is 1094.00
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According to Avogadro's law 1 mole contains 6.022 ×10^23 particles
1 mole of carbon = 44.01 g/ mol
Therefore;
44.01 g = 6.022 ×10^23 molecules
Hence, 1.68×10^26 molecules will have a mass of ;
(44.01 × 1.68×0^26) / 6.022×10^23
= 1.228 × 10^4 molecules