Moles

The mass of one mole of substance is called...

• molecular mass

• mole constant

• molar mass

• atomic weight

Molar mass is in units of ________.

• grams

• grams/mole

• mole

• moles/gram

What is the Molar mass of one mole of Iron (Fe)?

• 55.93 amu

• 55.93 g

• 111.86 amu

• 111.86 g

What is the mass of 0.89 mol of CaCl₂?

• 111 grams

• 0.008 grams

• 98.9 grams

• none of the choices

Tags

NGSS.HS-PS1-7

How many grams are in 4.5 moles of sodium fluoride, NaF?

• 0.1 g

• 9.3 g

• 100 g

• 189 g

When calculating molar mass for an element, which number do you need to look at on the periodic table?

• Atomic number

• Atomic Mass

• Atomic particles

• Avogardo's Number

What is a mole?

• 6.022 x 10²³ particles of any substance

• A small burrowing animal

• A dark spot on your skin

• A spy

Tags

NGSS.HS-PS1-7

How many grams of carbon dioxide are in 0.5 mol of carbon dioxide?

• 11 g

• 44.009 g

• 22.005 g

• 88.018 g

How many atoms of iodine are in a mole of iodine?

• 53

• 63.55g

• 126.9

• 6.02 x 10²³

How are a mole aluminum and zinc the same?

• they have the same number of atoms - 6.02 x 10²³

• they have the same molar mass