Table of contents

1. Intro to General Chemistry3h 48m
2. Atoms & Elements4h 16m
3. Chemical Reactions4h 10m
4. BONUS: Lab Techniques and Procedures1h 36m
5. BONUS: Mathematical Operations and Functions48m
6. Chemical Quantities & Aqueous Reactions3h 53m
7. Gases3h 49m
8. Thermochemistry2h 37m
9. Quantum Mechanics2h 58m
10. Periodic Properties of the Elements3h 9m
11. Bonding & Molecular Structure3h 29m
12. Molecular Shapes & Valence Bond Theory1h 57m
13. Liquids, Solids & Intermolecular Forces2h 23m
14. Solutions3h 1m
15. Chemical Kinetics2h 53m
16. Chemical Equilibrium2h 29m
17. Acid and Base Equilibrium5h 1m
18. Aqueous Equilibrium4h 47m
19. Chemical Thermodynamics1h 50m
20. Electrochemistry2h 42m
21. Nuclear Chemistry2h 36m
22. Organic Chemistry5h 7m
23. Chemistry of the Nonmetals2h 39m
24. Transition Metals and Coordination Compounds3h 16m

2. Atoms & Elements

Calculating Molar Mass

General Chemistry

2. Atoms & Elements

Calculating Molar Mass

Previous problemNext problem

Struggling with General Chemistry?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

What is the molar mass of a compound if it is given as 194.19 g/mol, and how can this value be used to convert from mass to moles?

Add 194.19 g/mol to the mass of the compound to find the number of moles.

Multiply the mass of the compound by 194.19 g/mol to find the number of moles.

Subtract 194.19 g/mol from the mass of the compound to find the number of moles.

Divide the mass of the compound by 194.19 g/mol to find the number of moles.

Previous problemNext problem

Verified step by step guidance

Understand the concept of molar mass: Molar mass is the mass of one mole of a substance, expressed in grams per mole (g/mol). It is used to convert between the mass of a substance and the amount in moles.

Identify the given molar mass: The problem states that the molar mass of the compound is 194.19 g/mol. This value is crucial for conversion calculations.

Recall the formula for converting mass to moles: The number of moles can be calculated using the formula: \( \text{moles} = \frac{\text{mass (g)}}{\text{molar mass (g/mol)}} \). This formula shows that you divide the mass of the compound by its molar mass.

Apply the formula: To find the number of moles, take the mass of the compound (in grams) and divide it by the molar mass (194.19 g/mol). This operation will give you the amount of substance in moles.

Verify the correct operation: The problem suggests several operations, but the correct one is to divide the mass of the compound by the molar mass to find the number of moles. This aligns with the formula for converting mass to moles.