CHEM_U6_Moles

Molar mass is the

• atomic mass of atoms in a compound

• sum of the atomic masses of all atoms in a compound

• amount of moles in a compound

When compared, a mole of oxygen and a mole of sulfur, how many atoms each has?

• oxygen has 16 grams of atoms

• sulfur has 32.06 grams of atoms

• both contains 6.02 x 10²³ atoms

• A

In chemistry, a "mole" is:

• The mass of an atom
• a large number used to count particles
• based on the volume of a substance

Tags

NGSS.HS-PS1-7

Which has more molecules?

• 1 mole H₂O

• 1 mole Al(OH)₃

• 1 mole NaCl

• They are all the same

How many hydrogen atoms are in one molecule of Amonium Sulfite (NH₄)₂SO₃?

• 6.02 x 10²³
• 2
• 4
• 8

Tags

NGSS.MS-PS1-1

How many grams are there in 3.25 x 10²¹ molecules of glucose?

• 0.977 g

• 97.7 g

• 0.00977 g

• 0.977 x 10²³ g

How many moles are in 6.022 x 10²³ molecules of H₂O?

• 1

• 2

• 6

• 600

What is a mole in chemistry terms?

• a mammal found in Eurasia
• an SI unit for measuring the amount of a substance
• a benign tumor sometimes found on human skin appearing as a small, sometimes raised area of skin, usually with darker pigment
• a Mexican sauce made from chili peppers, other spices, and chocolate

Which of the following units in expressing the amount of substance in terms of the number of particles?

• liter
• gram
• mole
• Celcius

What is the name of O₂?

• Oxygen Gas

• Dioxide

• Dioxygen

• Oxide