Answer to Question #269651 in General Chemistry for Emir

Question

if 2000 mg of nano2 is dissolved in 2000 ml of distilled water, what is the concentration of no - in this solution in ppm?

Answer 1

2000 mg = 2grams

2000ml = 2litres

Moles $=\frac{2}{69}=0.03moles$

Concentration$=\frac{0.03}{2}=0.015M$ = 15 ppm