What is molality if 4 gm of naoh dissolve in 500 gm of water find molality
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Molarity,M = w2 ×1000/m2×V
Where w2 is the mass of solute taken, m2 is the Molar mass of solute and V is the volume taken in mL.
M = 4×1000/40×500 = 1/5 = 0.2 moles/L (As density of water is 1, mass of water is equal to volume of water)
hope this will help you
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