ບົດທີ 6 - 7

ບົດທີ 6 - 7

7th Grade

5 Qs

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ບົດທີ 6 - 7

ບົດທີ 6 - 7

Assessment

Quiz

Chemistry

7th Grade

Practice Problem

Hard

Created by

Somchai Phoutthavong

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5 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

ການປຸງແຕ່ງທາດລະລາຍ ມາເຢຊຸນຟາດ MgSO2 0,1 mol/L, ຈໍານວນ 100 Cm3 ຈະຕ້ອງໃຊ້ມາເຢຊຸນຟາດຈັກກຣາມ ?

12

24

1,2

2,4

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

ຖ້າຕ້ອງການປຸງແຕ່ງທາດລະລາຍ ເງິນນີຕຣັດ 0,1 mol/L, ຈໍານວນ 250 Cm3 ຈະຕ້ອງໃຊ້ພຶກເງີນນີຕຣັດຈັກກຣາມ ?

4,25

42,5

425

0,425

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

ຖ້າຕ້ອງການປຸງແຕ່ງທາດລະລາຍອາຂິດອາເຊຕິກເຂັ້ມຂຸ້ນ 0,5 M ຈໍານວນ 150 ml ຈາກທາດລະລາຍອາຊິດອາເຊຕິກທີ່ມີ

ຄວາມເຂັ້ມຂຸ້ນ 2 M ຈໍານວນເທົ່າໃດ ?

0,375

3,75

37,5

375

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

ຖ້າຕ້ອງການປຸງແຕ່ງທາດລະລາຍອາຊິດນີຕຣິກເຂັ້ມຂຸ້ນ 0,1 M ຈໍານວນ 250 ml ຈາກທາດລະລາຍອາຊິດອາເຊຕິກທີ່ມີ

ຄວາມເຂັ້ມຂຸ້ນ 2 M ຈໍານວນເທົ່າໃດ ?

0,125

1,25

12,5

125

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

0.102 ແລະ 0,372

102 ແລະ 372

1,02 ແລະ 3,72

10,2 ແລະ 37,2

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