Q6 of 29 Page 73

Write down the concentration of each of the following solutions in g/L and mol/L.

2g NaOH in 50ml solution

Given:

Weight in grams= 2g


Volume in liters = 50 mL = 0.05L (1mL= 1/1000L)


Molecular mass of NaOH = 23+16+1 = 40 g/mol




Concentration in g/L = 40g/L




Concentration in mol/L = 1 mol/L


Thus, concentration in g/L is 40g/L and concentration in mol/L is 1mol/L.


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