Welcome to the Mole to Gram Conversion Worksheet! This guide provides clear, practical exercises to help you master mole-to-gram conversions. With step-by-step examples and a variety of questions and answers, you’ll quickly gain the skills to convert moles to grams for both elements and compounds.
Mole to Gram Conversion Worksheet (Questions and Answers)
Here is a complete Mole to Gram Conversion Worksheet with answers to help you practice.
Part 1: Basic Mole to Gram Conversions
How many grams are in 2.50 moles of water (H₂O)?
➔ 2.50 × 18.02 = 45.05 g
Find the mass of 1.75 moles of carbon dioxide (CO₂).
➔ 1.75 × 44.01 = 77.02 g
What is the mass of 0.600 moles of sodium chloride (NaCl)?
➔ 0.600 × 58.44 = 35.06 g
How many grams are in 5.00 moles of oxygen gas (O₂)?
➔ 5.00 × 32.00 = 160.00 g
Find the mass of 3.20 moles of methane (CH₄).
➔ 3.20 × 16.05 = 51.36 g
Part 2: Mole to Gram Conversion for Elements
Find the mass of 4.00 moles of magnesium (Mg).
➔ 4.00 × 24.31 = 97.24 g
Calculate the grams of 0.250 moles of aluminum (Al).
➔ 0.250 × 26.98 = 6.745 g
How many grams are there in 1.50 moles of sulfur (S)?
➔ 1.50 × 32.06 = 48.09 g
Find the mass of 2.20 moles of iron (Fe).
➔ 2.20 × 55.85 = 122.87 g
What is the mass of 0.75 moles of potassium (K)?
➔ 0.75 × 39.10 = 29.33 g
Part 3: Mole to Gram Conversion for Compounds (Challenge Problems)
How many grams are there in 2.00 moles of calcium carbonate (CaCO₃)?
➔ 2.00 × 100.09 = 200.18 g
Find the mass of 0.650 moles of glucose (C₆H₁₂O₆).
➔ 0.650 × 180.16 = 117.10 g
Calculate the mass of 1.25 moles of ammonia (NH₃).
➔ 1.25 × 17.03 = 21.29 g
How many grams are in 0.900 moles of sulfuric acid (H₂SO₄)?
➔ 0.900 × 98.08 = 88.27 g
Find the mass of 2.75 moles of acetic acid (C₂H₄O₂).
➔ 2.75 × 60.05 = 165.14 g
Part 4: Word Problem Applications
A chemist has 3.50 moles of zinc (Zn). What is the total mass?
➔ 3.50 × 65.38 = 228.83 g
How many grams are in 0.800 moles of potassium bromide (KBr)?
➔ 0.800 × 119.00 = 95.20 g
If you have 1.20 moles of silver nitrate (AgNO₃), how much would it weigh?
➔ 1.20 × 169.87 = 203.84 g
You need 0.500 moles of copper (II) sulfate (CuSO₄). What mass do you require?
➔ 0.500 × 159.61 = 79.81 g
A reaction needs 4.00 moles of dinitrogen tetroxide (N₂O₄). How many grams should you prepare?
➔ 4.00 × 92.02 = 368.08 g
You can also watch this visual guide on how to convert moles to grams for a more detailed explanation.
Step-by-Step Guide to Convert Moles to Grams
Step 1: Identify the number of moles you have.
Step 2: Find the molar mass of the substance.
Step 3: Multiply the number of moles by the molar mass.
Step 4: Solve and express your answer in grams.
For a quick conversion, use this moles to grams online calculator OR watch this visual guide on How To Convert Moles to Grams
Helpful Molar Mass Reference Table
| Substance | Molar Mass (g/mol) |
| Water (H₂O) | 18.02 |
| Carbon dioxide (CO₂) | 44.01 |
| Sodium chloride (NaCl) | 58.44 |
| Oxygen gas (O₂) | 32.00 |
| Methane (CH₄) | 16.05 |
| Magnesium (Mg) | 24.31 |
| Aluminum (Al) | 26.98 |
| Sulfur (S) | 32.06 |
| Iron (Fe) | 55.85 |
| Potassium (K) | 39.10 |
| Calcium carbonate (CaCO₃) | 100.09 |
| Glucose (C₆H₁₂O₆) | 180.16 |
| Ammonia (NH₃) | 17.03 |
| Sulfuric acid (H₂SO₄) | 98.08 |
| Acetic acid (C₂H₄O₂) | 60.05 |
| Zinc (Zn) | 65.38 |
| Potassium bromide (KBr) | 119.00 |
| Silver nitrate (AgNO₃) | 169.87 |
| Copper (II) sulfate (CuSO₄) | 159.61 |
| Dinitrogen tetroxide (N₂O₄) | 92.02 |
FAQs
1. What is a Mole in Chemistry?
In chemistry, a mole is a unit that represents 6.022 × 10²³ particles — typically atoms, molecules, or ions. It’s similar to the way we use the term ‘dozen’ to mean 12 items. The mole is a bridge between the atomic world and the world we can measure.
Key fact:
– 1 mole = 6.022 × 10²³ particles.
2. Why Convert Moles to Grams?
While chemical equations tell us about moles, in real life, we measure substances in grams. To perform real-world experiments or solve chemistry problems, we often need to convert moles into grams.
Example:
If a recipe asks for 2.00 moles of sugar (C₆H₁₂O₆), you need to know how many grams of sugar to weigh out.
3. How Can I Find Molar Mass
The molar mass is calculated by adding up the atomic masses of all the atoms in a molecule.
Example:
Molar mass of H₂O (water):
– Hydrogen (H) = 1.008 g/mol (and there are 2 H atoms)
– Oxygen (O) = 16.00 g/mol
Molar mass of H₂O = (2 × 1.008) + (1 × 16.00) = 18.02 g/mol
Tips for Solving Mole to Gram Conversion Problems
– Always double-check the molar mass.
– Round answers appropriately (often two decimal places).
– Practice with both elements and compounds.
– Memorize common molar masses (like H₂O, CO₂, O₂) for speed.
Conclusion
This Mole to Gram Conversion Worksheet is your ultimate practice guide for mastering mole-to-gram calculations. With clear examples, step-by-step answers, and helpful reference tables, you’ll gain confidence and accuracy in solving chemistry problems involving moles and grams.
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