Podcast
Questions and Answers
Hâ‚‚O is composed of ______ elements.
Hâ‚‚O is composed of ______ elements.
2
The total number of atoms in a COâ‚‚ molecule is ______.
The total number of atoms in a COâ‚‚ molecule is ______.
3
The molar mass of Hâ‚‚O is ______ g/mol.
The molar mass of Hâ‚‚O is ______ g/mol.
18.016
84.03 g of KCl corresponds to ______ moles.
84.03 g of KCl corresponds to ______ moles.
The number of molecules in 9.31 g of NO₂ is ______ x 10²³.
The number of molecules in 9.31 g of NO₂ is ______ x 10²³.
The percent composition of copper in CuBr2 is ______%.
The percent composition of copper in CuBr2 is ______%.
The molecular formula of trichloroisocyanuric acid is ______.
The molecular formula of trichloroisocyanuric acid is ______.
A compound with 64.9% carbon and a molecular mass of 148.24 g/mol has the molecular formula ______.
A compound with 64.9% carbon and a molecular mass of 148.24 g/mol has the molecular formula ______.
To convert 4.8 L of SO3 to moles, the answer is ______ mol.
To convert 4.8 L of SO3 to moles, the answer is ______ mol.
The mass of 8.34 x 10^24 chromium atoms is ______ g.
The mass of 8.34 x 10^24 chromium atoms is ______ g.
Flashcards
Molar mass of Hâ‚‚O
Molar mass of Hâ‚‚O
The mass of one mole of water molecules. Calculated from the atomic masses of hydrogen and oxygen.
Moles to Mass Conversion
Moles to Mass Conversion
Converting the number of moles of a substance to its corresponding mass (grams)
Mass to Moles Conversion
Mass to Moles Conversion
Converting the mass (grams) of a substance to its corresponding number of moles.
Molar Mass of COâ‚‚
Molar Mass of COâ‚‚
Signup and view all the flashcards
Moles of KCl from 84.03 g
Moles of KCl from 84.03 g
Signup and view all the flashcards
Atoms to Grams
Atoms to Grams
Signup and view all the flashcards
Liters to Moles
Liters to Moles
Signup and view all the flashcards
Moles to Liters
Moles to Liters
Signup and view all the flashcards
Percent Composition
Percent Composition
Signup and view all the flashcards
Empirical vs. Molecular Formula
Empirical vs. Molecular Formula
Signup and view all the flashcards
Study Notes
Chemical Quantities Review
- Problem 1: Determine the number of elements in molecules
- Hâ‚‚O has 2 elements: Hydrogen (H) and Oxygen (O)
- Oâ‚‚ has 1 element: Oxygen (O)
- Problem 2: Determine the number of atoms in molecules
- Hâ‚‚O has 3 atoms: 2 Hydrogen (H) and 1 Oxygen (O)
- Oâ‚‚ has 2 atoms: 2 Oxygen (O)
- Problem 3: Calculate molar mass
- Hâ‚‚O: 18.016 g/mol
- COâ‚‚: 44.01 g/mol
- Problem 4: Convert mass to moles
- a. 84.03 g KCl = 1.127 mol
- b. 55.42 g sodium carbonate = 0.5279 mol
- Problem 5: Convert moles to mass
- a. 2.56 mol Brâ‚‚ = 409.3 g
- b. 0.567 mol iodine gas = 147.8 g
- Problem 6: Convert mass to molecules
- a. 9.31 g NO₂ = 1.22 x10²³ molecules
- b. 32.81 g lithium nitride = 5.673 x10²² molecules
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
