What is the number of moles in 10 grams of NaOH?

What is the number of moles in 10 grams of NaOH?

Step 1: Find the molar mass of NaOH. This is done by adding the atomic masses of sodium (Na), oxygen (O), and hydrogen (H).
Step 2: The atomic mass of sodium (Na) is approximately 23 g/mol.
Step 3: The atomic mass of oxygen (O) is approximately 16 g/mol.
Step 4: The atomic mass of hydrogen (H) is approximately 1 g/mol.
Step 5: Add these values together: 23 g/mol (Na) + 16 g/mol (O) + 1 g/mol (H) = 40 g/mol.
Step 6: Now, use the formula to find the number of moles: Number of moles = mass / molar mass.
Step 7: Substitute the values: mass = 10 grams and molar mass = 40 g/mol.
Step 8: Calculate: Number of moles = 10 g / 40 g/mol = 0.25 moles.

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