Chủ đề pha trộn dung dịch

Flashcard
•
Chemistry
•
1st - 3rd Grade
•
Hard
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10 questions
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1.
FLASHCARD QUESTION
Front
Trộn 3 lít HNO3 0,2M với 1 lít HNO3 1M, nồng độ HNO3 thu được là xM. Tính x.
Back
0,4
2.
FLASHCARD QUESTION
Front
10g NaOH 45% + 50g NaOH 15% = NaOH solution with concentration y%. Find y.
Back
20
3.
FLASHCARD QUESTION
Front
Tỉ lệ m1/m2 để có dung dịch HCl 25% từ HCl 45% và HCl 15%
Back
1:2
4.
FLASHCARD QUESTION
Front
Số ml H2O cần thêm vào 2 lít NaOH 1M để có nồng độ 0,1M?
Back
18000ml
5.
FLASHCARD QUESTION
Front
Cần bao nhiêu gam H2O vào 500g dd NaOH 12% để có dung dịch NaOH 8%?
Back
250g
6.
FLASHCARD QUESTION
Front
Cần bao nhiêu lít nước axit H₂SO₄ (D=1,84) và nước cất để pha 9 lít dd H₂SO₄ có D = 1,28g/ml?
Back
3 lít và 6 lít
7.
FLASHCARD QUESTION
Front
Hòa tan thêm bao nhiêu gam KOH vào 1200g dd KOH 12% để có dd KOH 20%?
Back
120g
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