1
What type of particle constitutes oxygen gas (O₂)
molecule
What are the various types of particles?
atoms, molecules, and ions
What is the value of the Avogadro constant?
6.02 X 1023
How many moles are present in 252 grams of pentene (C5H10)
3.60 Mole
How many moles are present in 100 potassium ions (K⁺)
1.66 x 10-22 Mole
How many atoms are present in 1 mole of acetic acid (CH₃COOH)
8 x 6.02 x 1023 atoms
How many calcium ions (Ca2+) are present in 3 moles of calcium carbonate (CaCO3)
1.81 x 1024 ions
How many atoms are present in 10 grams of iron (Fe)
1.08 X 1023 atoms
What is the mass, in grams, of 3.59 X 1023 atoms of iron (Fe)
33.3 grams
To obtain an aluminum (Al) sheet containing 1.806 x 1024 atoms, what mass of pure aluminum, in kilograms, must be ordered?"
0.081 kilograms
A 12.7 grams copper (Cu) sheet undergoes a chemical reaction. If 6.02 x1022 copper atoms are lost during the process, what is the remaining mass of the sheet in grams?
6.35 grams
Analyze and compare the masses of 1.5 moles of carbon dioxide gas (CO2) and 5.0 moles of ammonia gas (NH3). Determine which substance possesses a greater mass and calculate the difference in grams.
The mass of ammonia gas (NH3) is greater by 19 grams.