Chemistry Some Basic Concepts of Chemistry Mole Concept

40% (w/v) NaCl has specific gravity 1.12 g/mL. In ppm the concentration of NaCl is: 

1
5.5 × 105 
2
3.57 × 105​ 
3
1 × 106 
4
More than one of the above
5
None of the above

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