Review materi kimia

Review materi kimia

12th Grade

20 Qs

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Review materi kimia

Review materi kimia

Assessment

Quiz

Chemistry

12th Grade

Practice Problem

Easy

Created by

Zulfa Nurfadhilla

Used 4+ times

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20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 20 pts

Sebanyak 30 gram urea (Mr = 60 g/mol) dilarutkan ke dalam 100 gram air. Hitunglah molalitas larutan.

5

0,5

0,05

2

2.

MULTIPLE CHOICE QUESTION

30 sec • 20 pts

Hitunglah molalitas larutan yang dibuat dengan melarutkan 4 gram NaOH dalam 200 gram air! (Ar​ Na = 23, O = 16, H = 1)

0.5 M

5 M

0,05 M

0,2 M

2 M

3.

MULTIPLE CHOICE QUESTION

30 sec • 20 pts

Sebanyak 30 gram urea (Mr = 60g/mol) dilarutkan kedalam 18 g air. Hitunglah molalitas larutannya!

27,5 m

2,75 m

27,75 m

27,7m

4.

MULTIPLE CHOICE QUESTION

30 sec • 20 pts

Tentukan molalitas larutan yang mengandung 20 gram gula tebu, C12​H22​O11​, yang larut dalam 125 gram air! Dengan mr gula tebu (342 g/mol)

0,48 M

0,47 M

0,4 M

0,7 M

5.

MULTIPLE CHOICE QUESTION

30 sec • 20 pts

Campuran pereaksi di dalam tabung reaksi mengakibatkan tabung tersebut menjadi panas jika dipegang. Penyataan yang tepat terkait hal tersebut adalah….

Entalpi pereaksi tetap

Entalpi peraksi berkurang

Entalpi pereaksi dan hasil reaksi bertambah

Entalpi pereaksi lebih besar dibanding entalpi hasil reaksi

Entalpi hasil reaksi lebih besar dibanding entalpi pereaksi

6.

MULTIPLE CHOICE QUESTION

30 sec • 20 pts

Reaksi mana yang termasuk reaksi eksoterm?

Pencairan es

Pembakaran kayu

Penguapan air

Fotosintesis

7.

MULTIPLE CHOICE QUESTION

30 sec • 20 pts

Apa yang terjadi pada suhu lingkungan saat reaksi eksoterm berlangsung?

Suhu memuai

Suhu tetap

Suhu menurun

Suhu meningkat

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