Molaritas, Molalitas, Normalitas, Fraksi Mol
Quiz
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Chemistry
•
10th Grade
•
Practice Problem
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Medium
Dela Arista
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10 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Berapakah molalitas larutan yang mengandung 12 gram NaOH (Ar Na = 23 gr/mol, Ar O = 16 g/mol, dan Ar H = 1 gr/mol) terlarut dalam 500 gr air …..
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Berapa molalitas larutan yang dibuat dengan melarutkan 6 gram urea CO(NH2)2 dalam 2 kg air ….. (Mr CO(NH₂)₂ = 60 gr/mol)
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
NaOH ( Mr = 40 gr/mol ) sebanyak 4 gram dilarutkan kedalam air sehingga volumenya menjadi 150 mL. Berapakah kemolaran larutan tersebut …..
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Jika 0,2 liter larutan NaOH dibuat dengan melarutkan 8 gram NaOH (Mr = 40) dalam air. Berapakah Normalitas larutan tersebut …..
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Berapakah molaritas larutan yang dibuat dengan melarutkan 7,4 gram Ca(OH)2 dalam 250 ml liter air (Ar H=1 O=16 Ca=40) …..
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Berapakah molalitas dari larutan HCl 25% (w/w)? (Ar H = 1 g/mol, Ar Cl = 35,5 g/mol).
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Larutan glukosa dibuat dengan melarutkan 18 g glukosa (Mr = 180 g/mol) ke dalam 250 g air. Berapakah fraksi mol glukosa …..
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