6.6 larutan piawai dan pencairan

Quiz
•
Education
•
9th - 12th Grade
•
Hard
NUR Moe
Used 5+ times
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5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
X g serbuk natrium klorida dilarutkan dalam 300 cm3 air suling untuk menghasilkan larutan dengan kepekatan 0.005 mol dm-3.
Berapakah nilai X?
[Jisim molar Natrium klorida = 58.5 g mol-1]
X g of sodium chloride powder is dissolved in 300 cm3 of distilled water to produce a solution with a concentration of0.005 mol dm-3.
What is the value of X?
[Jisim molar Natrium klorida = 58.5 g mol-1]
0.026 g
0.008 g
1.026 g
1.500 g
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Jadual 4 menunjukkan sebahagian langkah-langkah penyediaan larutan piawai natrium karbonat di dalam makmal.
Table 4 shows part of steps to prepare standard solution of sodium carbonate in laboratory
Pilih susunan langkah-langkah yang betul bagi penyediaan larutan piawai natrium karbonat.
Choose the correct arrangement of steps to prepare the standard solution of sodium carbonate.
P,S,T,Q,R
R,P,S,T,Q
P,S,R,T,Q
R,P,T,S,Q
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Rajah 22 menunjukkan penyediaan larutan natrium hidroksida Y mol dm-3 dengan nilai pH 13.
Diagram 22 shows a preparation of Y mol dm-3 of sodium hydroxide solution with a pH value of 13.
Apakah nilai X?
What is the value of X?
0.02 mol dm-3
0.1 mol dm-3
0.4 mol dm-3
0.5 mol dm-3
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Rajah 21 menunjukkan langkah-langkah penyediaan larutan kalium klorida.
Diagram 21 shows the preparation of potassium chloride solution.
500 cm3 larutan KC1 0.4 mol dm'3
500 cm3 of 0.4 mol dm'3 o/’KO solution
Apakah nilai X?
[Jisim atom relatif: K=39, 0=35.5]
What is the value of X?
[Relative atomic mass: K=39, 0=35.5]
59.6 g
37.3 g
29.4 g
14.9 g
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Berapakah isi padu air suling yang perlu ditambahkan ke dalam 100 cm3 larutan asid nitrik 2.0 mol dm-3 bagi menghasilkan asid nitrik 0.5 mol dm-3?
What is the volume of distilled water to be added into 100 cm3 of 2.0 mol dm-3 of nitric acid to produce 0.5 mol dm-3 of nitric acid?
250 cm3
400 cm3
300 cm3
500 cm3
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