Berapakah kemolalan larutan yang dibuat dengan mencampurkan 3 gram urea CO(NH2)2 dengan 200 gram air?

Konsentrasi Larutan

Quiz
•
Chemistry
•
1st - 3rd Grade
•
Hard
Muhamad Mabruri
Used 22+ times
FREE Resource
9 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
0,56
0,66
0,76
0,86
0,96
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Berapakah molaritas larutan yang dibuat dengan melarutkan 40 gram NaOH dalam 250 mL larutan? (Ar Na=23, O=16 H=1)
0,4 M
0,2 M
2 M
4 M
0,02 M
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
NaOH ( Mr= 40) sebanyak 8 gram dilarutkan ke dalam air sehingga volume nya menjadi 250 mL. Hitung lah Kemolaran larutan tersebu?
0,8 M
0,7 M
0,6 M
0,9 M
0,5 M
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Jika ke dalam 500 gram air ditambahkan 17,1 gram larutan gula tebu (Mr = 342).Tentukan berapa nilai molalitas larutan tersebut
1 molal
0,1 molal
0,01 molal
0,001 molal
0,0001 molal
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Zat dengan massa 40 gram (1 molal) memiliki Mr = 40. Hitunglah pelarut yang digunakan!
100 gram
200 gram
500 gram
750 gram
1000 gram
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Berapakah molalitas dari larutan HCl 37% (massa)? (Ar H = 1 , Ar Cl = 35) ?
15,01 molal
15,03 molal
16,03 molal
16,07 molal
17,00 molal
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Larutan glukosa dibuat dengan melarutkan 18 g glukosa (Mr = 180 g/mol) ke dalam 250 g air. Hitunglah fraksi mol glukosa!
0,1
0,01
0,001
0,2
0,02
8.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Berapakah Volume dari larutan H2SO4 2 M yang diperlukan untuk membuat larutan 200 mL H2SO4 0,5 M ?
10 mL
20 mL
30 mL
40 mL
50 mL
9.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Hitunglah nilai fraksi mol etanol (Mr = 46) dalam larutan etanol 46% massa ?
0,50
0,75
0,25
0,10
0,87
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