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Copy of Lesson 8.1 (H) (10/22/2025)

Posljednje ažuriranje 6 months ago

5

1

Pitanje 1

1.

How is 1 mole of Carbon the same as 1 mole of Oxygen?

Obavezno

1

Obavezno

1

Obavezno

1

Obavezno

1

Pitanje 2

2.

How is 1 mole of Carbon different from 1 mole of Oxygen?

Pitanje 3

3.

What is the molar mass of sodium bromide?

205.8 g/mol

126.1 g/mol

98.89 g/mol

102.9 g/mol

Pitanje 4

4.

What is the mass in grams of 6.0 x 10²⁵ molecules of Cl₂O₂?

1.169 x 10⁴ g

1.22 x 10⁴ g

1.087 x 10⁴g

1.025 x 10⁴ g

Pitanje 5

5.

How many moles is a sample that contains 2.50x10²⁶ molecules of AgNO₃?

235 mol

623 mol

370 mol

415 mol