Use the following information for Questions
1 mole = 6.022 x10 23 particles
-If you had a 5.0 g sample of Li, Na, K, Rb, and Cs, you would have more atoms of which element?

Question

Use the following information for Questions 
1 mole = 6.022 x10 23 particles
-If you had a 5.0 g sample of Li, Na, K, Rb, and Cs, you would have more atoms of which element?

Quizplus · Accepted Answer

The number of atoms in a sample is determined by dividing the mass of the sample by the molar mass of the element and then multiplying by Avogadro's number. Lithium (Li) has the lowest molar mass among the given elements, so a 5.0 g sample of Li would contain more atoms than the same mass of any of the other elements listed.

Use the Following Information for Questions