Question

74. Weight of a 5% by weight of a NaCl solution
required to yield 0.3 g of NaCl is​

Answer 1

Explanation:

5% kg weight NaCl means =

100 gm(water+NaCl)

5 g NaCl

i.e, 5 g NaCl in 95 g water

then, 3.2 g NaCl in x g water

Weight of solution =60.8+3.2=64 g solution