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MHT CET202523 Apr 2025Evening ShiftChemistrySome Basic Concepts of ChemistryActual

Find the number of millimoles for 0.160 g sodium hydroxide.

Options

  1. A0.08
  2. B0.20
  3. C4.0
  4. D40.00

Correct answer

C. 4.0

Step-by-step solution

The number of millimoles of sodium hydroxide in a 0.160 g sample is determined by first calculating its molar mass. The molar mass of NaOH is 22.99 + 16.00 + 1.01 = 40.00 g/mol. Converting mass to moles gives 0.160 40.00 = 0.004 mol. Since 1 mole equals 1000 millimoles, the millimole quantity is 0.004 1000 = 4 mmol.

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