Question

what is the number of electron that would weight 1kg ?Mass of an electron is 9.1×10to the powe -31kg. ​

Answer 1

1 kg
_____
9.1 × 10 ^ -31 kg

0.109890199 × 10 ^ 31

Answer 2

$\mathfrak{\huge{\red{\underline{\underline{AnswEr :}}}}}$

» Mass of an Electron = $\bold{9.11 \times {10}^{ (- 31)}}$

⇒ 1Kg = $\large{ \frac{1}{9.11 \times {10}^{( - 31)} } }$

⇒ 1Kg = $\large{ \frac{1×10}{9.11 \times {10}^{( - 30)} } }$

⇒ 1Kg = $\large{ \frac{10\times {10}^{( 30)}}{9.11 } }$

⇒ 1Kg = $\boxed{\blue{1.0977 \times {10}^{30}}}$