Mastering Mole Conversions and Calculations

The video tutorial provides answers and explanations for a practice quiz on mole conversions. It covers filling in blanks with appropriate numbers, using Avogadro's number, and information from the periodic table. The tutorial includes multiple choice questions on converting grams to moles for elements like copper, hydrogen sulfide, and carbon. It also explains one-step and two-step conversion problems involving butane, water, carbon dioxide, and bromine, emphasizing the use of conversion factors and significant figures.

What is the mass of one mole of lithium?

• 6.02 grams

• 32 grams

• 16 grams

• 6.94 grams

How many atoms are in one mole of lithium?

• 6.02 x 10^23 atoms

• 6.94 atoms

• 32 atoms

• 16 atoms

What is the correct setup for converting 5.1 grams of copper into moles?

• 1 gram = 63.55 moles

• 63.55 grams = 1 mole

• 1 mole = 63.55 grams

• 5.1 grams = 1 mole

How many grams are in one mole of hydrogen sulfide?

• 16 grams

• 32 grams

• 1.008 grams

• 34.076 grams

What is the number of atoms in one mole of carbon?

• 12.01 atoms

• 6.02 x 10^23 atoms

• 1.008 atoms

• 32 atoms

How many moles of butane are in 5 grams?

• 0.0860 moles

• 58.12 moles

• 5 moles

• 1 mole

How many molecules are in 17.5 moles of water?

• 34 molecules

• 17.5 molecules

• 6.02 x 10^23 molecules

• 1.05 x 10^25 molecules

What is the correct conversion factor from grams to moles for carbon dioxide?

• 1 gram = 44.01 moles

• 2.67 grams = 1 mole

• 44.01 grams = 1 mole

• 1 mole = 44.01 grams

What is the mass of 2.67 grams of carbon dioxide converted to molecules?

• 3.65 x 10^23 molecules

• 44.01 molecules

• 6.02 x 10^23 molecules

• 2.67 molecules

How many grams are in 4.25 x 10^24 molecules of bromine?

• 4.25 grams

• 79.90 grams

• 159.80 grams

• 1130 grams