How many moles are in 50 grams of CaCO3?

How many moles are in 50 grams of CaCO3?

Step 1: Find the molar mass of CaCO3 (calcium carbonate). This is the total mass of one mole of CaCO3.
Step 2: Calculate the molar mass by adding the atomic masses of calcium (Ca), carbon (C), and oxygen (O).
Step 3: The atomic mass of Ca is approximately 40 g/mol, C is approximately 12 g/mol, and O is approximately 16 g/mol. CaCO3 has 1 Ca, 1 C, and 3 O.
Step 4: Calculate the molar mass: 40 g/mol (Ca) + 12 g/mol (C) + 3 * 16 g/mol (O) = 100 g/mol.
Step 5: Use the formula to find the number of moles: Number of moles = mass / molar mass.
Step 6: Substitute the values: Number of moles = 50 g / 100 g/mol.
Step 7: Calculate the result: 50 g / 100 g/mol = 0.5 moles.

Molar Mass Calculation – Understanding how to calculate the molar mass of a compound and its application in determining the number of moles from a given mass.
Mole Concept – Applying the mole concept to relate mass and molar mass to find the number of moles.