January 6th Worksheet

A sample of fluorine contains 2.03x10²⁴ atoms. Determine the number of moles of the sample. Use sig figs. (For numbers in scientific notation, you may express them using E. For example, you would input 2.03x10²⁴ as 2.03E24)

Determine the number of molecules in a 0.0050 mol sample of water. (For numbers in scientific notation, you may express them using E. For example, you would input 2.03x10²⁴ as 2.03E24)

Determine what type of 'particle'

sodium chloride

• atom

• ion

• molecule

• formula unit

Determine what type of 'particle'

water

• atom

• ion

• molecule

• formula unit

Tags

NGSS.HS-ESS2-5

Determine what type of 'particle'

MgCl₂

• atom

• ion

• molecule

• formula unit

Determine what type of 'particle'

Mg

• atom

• ion

• molecule

• formula unit

Tags

NGSS.MS-PS1-1

Determine what type of 'particle'

Mg²⁺

• atom

• ion

• molecule

• formula unit

The atomic RADIUS of Francium is 270 pm. If you were to line up one mole of Francium atoms side by side, how long would the line of atoms be in meters? Express your answer in 2 sig figs. (For numbers in scientific notation, you may express them using E. For example, you would input 2.03x10²⁴ as 2.03E24)