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

Quiz
•
Chemistry
•
12th Grade
•
Easy
Zulfa Nurfadhilla
Used 4+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 20 pts
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, C12H22O11, 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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