Berapakah panjang rusuk kubus dalam cm yang mengandung satu juta atom pada keadaan normal ? (Massa molekul 32 gram/mol)

Pertanyaan

Pembahasan Video:

Pembahasan Soal:

$begin mathsize 14px style N equals space 10 to the power of 6 space molekul straight M equals space 32 space gram divided by mol space bold Jumlah bold space bold mol bold colon bold space n equals N over N subscript O n equals fraction numerator space 10 to the power of 6 space over denominator 6 comma 022 space x space 10 to the power of 23 end fraction equals 1 comma 66 space cross times 10 to the power of negative 18 end exponent space mol bold Cari bold space bold Volume n equals V over V subscript S T P end subscript V equals space n cross times V subscript S T P end subscript V equals space 1 comma 66 space cross times 10 to the power of negative 18 end exponent cross times 22 comma 4 space straight L V equals 3 comma 72 space x 10 to the power of negative 17 end exponent space straight L V equals 3 comma 72 space x 10 to the power of negative 14 end exponent space cm cubed bold Maka bold space bold rusuk bold space bold kubus V equals r cubed r equals cube root of V r equals cube root of 3 comma 72 space x 10 to the power of negative 14 end exponent end root r equals 3 comma 34 space cross times 10 to the power of negative 5 end exponent space cm end style$

Jadi, jawaban yang benar adalah $begin mathsize 14px style bold 3 bold comma bold 34 bold space bold cross times bold 10 to the power of bold minus bold 5 end exponent bold space bold cm end style$ .

Pembahasan terverifikasi oleh Roboguru

Terakhir diupdate 12 April 2021

RUANGGURU HQ

Jl. Dr. Saharjo No.161, Manggarai Selatan, Tebet, Kota Jakarta Selatan, Daerah Khusus Ibukota Jakarta 12860

Coba GRATIS Aplikasi Ruangguru

Download di Google Play

Download di Appstore

Download di App Gallery

Produk Ruangguru

Produk Lainnya

Bantuan & Panduan

Hubungi Kami

081578200000

[email protected]

02140008000

Ikuti Kami

Instagram

Facebook

Twitter

Youtube