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

Last updated 5 months ago

5 questions

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

205.8 g/mol

126.1 g/mol

98.89 g/mol

102.9 g/mol

1.169 x 104 g

1.22 x 104 g

1.087 x 104 g

1.025 x 104 g

235 mol

623 mol

370 mol

415 mol

What is the molar mass of sodium bromide?

205.8 g/mol

126.1 g/mol

98.89 g/mol

102.9 g/mol

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 104 g

1.025 x 104 g

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

235 mol

623 mol

370 mol

415 mol