Q6 of 29 Page 73

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

3g CH3COOH in 100ml solution

Given:

Weight in g= 3g


Volume in L = 100 mL = 0.1L (1mL= 1/1000L)


Molecular mass of CH3COOH = 12+3×1+12+16+16+1


= 60 g/mol




Concentration in g/L = 30g/L




Concentration in mol/L = 0.5 mol/L


Thus, concentration in g/L is 30g/L and concentration in mol/L is 0.5mol/L.


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