How many moles are in 180 grams of water?

How many moles are in 180 grams of water?

Step 1: Identify the chemical formula of water, which is H2O.
Step 2: Calculate the molar mass of water. This is done by adding the mass of hydrogen and oxygen.
Step 3: There are 2 hydrogen atoms in water. The atomic mass of hydrogen is approximately 1 g/mol. So, 2 * 1 = 2 g/mol for hydrogen.
Step 4: There is 1 oxygen atom in water. The atomic mass of oxygen is approximately 16 g/mol.
Step 5: Add the mass of hydrogen and oxygen together: 2 g/mol (from hydrogen) + 16 g/mol (from oxygen) = 18 g/mol. This is the molar mass of water.
Step 6: Use the formula to find the number of moles: Number of moles = mass (in grams) / molar mass (in g/mol).
Step 7: Substitute the values into the formula: Number of moles = 180 g / 18 g/mol.
Step 8: Calculate the number of moles: 180 g / 18 g/mol = 10 moles.

Molar Mass Calculation – Understanding how to calculate the molar mass of a compound by summing the atomic masses of its constituent elements.
Mole Concept – Applying the mole concept to convert grams of a substance to moles using its molar mass.