Molar mass of NaOH = 23 + 16 + 1 = 40 g/mol. Number of moles = mass/molar mass = 10 g / 40 g/mol = 0.25 moles.
Questions & Step-by-step Solutions
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Q
Q: How many moles are in 10 grams of NaOH?
Solution: Molar mass of NaOH = 23 + 16 + 1 = 40 g/mol. Number of moles = mass/molar mass = 10 g / 40 g/mol = 0.25 moles.
Steps: 5
Step 1: Find the molar mass of NaOH. This is done by adding the atomic masses of sodium (Na), oxygen (O), and hydrogen (H). Sodium has a mass of 23 g/mol, oxygen has a mass of 16 g/mol, and hydrogen has a mass of 1 g/mol.
