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NCERT Class XI Chemistry Some Basic Concepts of Chemistry Solutions

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Question : 27 of 36
Marks: +1, -0
Convert the following into basic units :
(i) 28.7 pm
(ii) 15.15 pm
(iii) 25365 mg
Solution:  
(i) 28.7 × 10–1210^{–12} m or 2.87 × 10–1110^{–11} m
(ii) 15.15 × 10–1210^{–12} m or 1.515 × 10–1110^{–11} m
(iii) 25365 mg = 25365 × 10–610^{–6} kg [Since 1 mg = 10–610^{–6} kg]
= 2.5365 × 10–210^{–2} kg
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