
LATIHAN 3
Quiz
•
Chemistry
•
10th Grade
•
Practice Problem
•
Hard
Titir Tobing
Used 3+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Suatu zat di dalam suatu larutan menyatakan perbandingan banyaknya mol dari zat tersebut terhadap jumlah mol seluruh komponen dalam larutan disebut……
Molaritas
Molalitas
Fraksi Mol
Stoikiometri
Persen Volume
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Sebuah larutan mengandung 80 gram sukrosa (gula tebu) dan 100 mL . Jika diketahui massa jenis adalah 1,00 gram/mL, maka hitunglah persen massa gula dalam larutan tersebut…..
22,2 %
44,4%
55%
60%
74%
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Berapa volume alkohol (dalam mL) yang terlarut dalam 500 mL larutan alkohol yang memiliki kadar 50% yaitu……
70 mL
125 mL
250 mL
260 mL
275 mL
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Berapa gram NaOH yang terdapat dalam 50 mL larutan NaOH 20% jika massa jenis larutan dianggap 1 g/mL yaitu……
2 gram
5 gram
8 gram
10 gram
12 gram
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Di dalam udara 10 Kg air terdapat 30 Mg Merkuri (Hg). Nyatakan kadar tersebut dalam bagian per juta...
1,5 bpj
2 bpj
2,5 bpj
2,8 bpj
3 bpj
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Kadar gas metana di udara maksimum hanya diperbolehkan sebesar 0,0004% volume. Berapa kadar gas metana tersebut jika dinyatakan dalam satuan bpj yaitu……
4 bpj
3 bpj
2 bpj
1 bpj
0,5 bpj
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Hitunglah molalitas larutan yang terjadi bila 72 gram Kristal MgSO4 dilarutkan dalam 400 gram air (Mr MgSO4 = 120) yaitu……
1,2 molal
1,5 molal
1,6 molal
1,8 molal
1,9 molal
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