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Determine the mass of sodium hydroxide in 5.00dm3 of 0.125moldm3​

Sagot :

safkathjahan12
Number of moles ,n = m/Mr
Molarity, C = n/V
So, Comparing two equations we get,
m = Mr * C * V
= 40 * 0.125 * 5
=25g.

here, Mr = molecular mass of NaOH = 40g/mol
C= 0.125 mol/dm3
V= 5 dm3
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