What is the concentration of a solution containing 1.0 g of sodium hydroxide in 250 cm³ of solution? A- 0.025 mol/dm³
B- 0.10 mol/dm³
C- 0.25 mol/dm³
D- 1.0 mol/dm³

Correct option is

D-1.0mol/dm³

Mass of NaOH (m) = 1g

The volume of water (V) = 250 ml

Mol. wt of NaOH (m) = 40g/mol

Molarity (M) =M×V(ml)m×1000

M=40×2501×1000

M=101 or 0.1 M

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explanation: