Question

in 150 solutie NaOH se gasesc 2g NaOH. determina concentratia molara a solutiei.

Answer 1

c=md/ms•100
c=2/150•100
c=200/150
c=1.(3)%

Answer 2

c/100=md/ms
c=md/ms*100
c=2/150*100
c=(2*2):3
c=4:3
c=1,(3)