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UM UGM KIMIA 2018 kode 276 36-40

Authored by Chemistry Zumre

Chemistry

12th Grade

Used 1+ times

UM UGM KIMIA 2018 kode 276 36-40
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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Jika titik didih dan entalpi penguapan air masing-masing adalah 100oC dan 40,8 kJ/mol, maka entropi pengupaan molar air adalah ...

0,41 J mol−1 K−1

109,4 J mol−1 K−1

408,0 J mol−1 K−1

54,7 J mol−1 K−1

15,22 J mol−1 K−1

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

ΔH = −420 kJ

ΔH = −105 kJ

ΔH = −1680 kJ

ΔH = +420 kJ

ΔH = +105 kJ

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Pada reaksi orde satu, A → Produk, grafik yang akan memberikan garis lurus adalah ...

1/[A] versus t, jika reaksi orde 1

ln [A] versus t, jika reaksi orde 1

[A] versus t, jika reaksi orde 1

[A]2 versus t, jika reaksi orde 2

1/[A]2 versus t, jika reaksi orde 2

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Ke dalam 100 mL larutan NH3 (pKb = 4,74) 0,2 M ditambahkan x mL larutan H2SO4 0,1 M, hingga pH larutan menjadi 9,26. Nilai x adalah ...

10 mL

20 mL

40 mL

50 mL

60 mL

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Larutan dengan konsentrasi 0,1 M senyawa garam di bawah ini yang memiliki pH tertinggi adalah ...

NaNO3

NaClO4

NaHSO4

NaHCO3

NaCl

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