Answer:-
To find the number of molecules in 48.0 grams of NaOH (sodium hydroxide), follow these steps: Calculate moles of NaOH: Molar mass of NaOH = 40 g/mol Moles = 48.0 g ÷ 40 g/mol = 1.2 moles Convert moles to molecules: Multiply by Avogadro’s number: 1.2 × 6.022 × 10²³ = 7.23 × 10²³ molecules So, 48.0 grams of NaOH contains approximately 7.23 × 10²³ molecules.
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