Question

Ibu melarutkan 5 gram garam dapur kedalam 250 ml air,berapakah konsentrasi larutan garam yg terjadi,dalam satuan g/L ????????................................

Answer 1

250 ml = 0,25 L

Konsentrasinya
5/0,25 = 20 g/L

Answer 2

Gr NaCl = 5 gr
v = 250 mL = 0,25 L
Mr NaCl = 58,5
n NaCl = gr/Mr = 5/0,25 = 20
M = n/v = 20/58,5 = 0,341 M