Widiya Aprilianti 4311416056 Jawaban Soal.docx

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DISKUSI NAMA : Widiya Aprilianti NIM : 4311416056 KELOMPOK :6

1. Diketahui : Ρ : 1,84 g/cm3 Kadar : 98 % Mr : 98,078 g/mol M2 : 1 M V2 : 100 mL Ditanya : cara membuat larutan H2SO4 1 M 100 mL ? Jawab : 𝑀 =

10 . 𝜌 . 𝑘𝑎𝑑𝑎𝑟 𝑀𝑟

=

10 . 1,84 . 98 98,078

= 18,39 M

M1. V1 = M2 . V2 18,39 . V1 = 1 . 100 V1. = 5,44 mL 1) larutan asam sulfat pekat sebanyak 5,44 mL dengan pipet ukur, 2) kemudian dimasukkan ke dalam beker glass dan ditambahkan sedikit aquades 3) selanjutnya di takar 100 mL, digoyang perlahan agar homogen kemudian ditambahkan aquadest hingga tanda batas, 4) tutup dan gojog hingga homogen.

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