A good conversion factor to remember is this.
1 ppm = 1 mg/L
So 45 ppm = 45 mg/L.
Convert mg to g, then divide by molar mass NO3^- to convert to mols and you have it.
Express each aqueous concentration in the unit indicated.
45 ppm NO3 -, as molarity of nitrate ion in [mol NO3 - /L].
3 answers
How many atoms are in 0.075 mol of titanium?
2.2 × 1024
4.5 × 1022
1.2 × 10–25
6.4 × 102
2.2 × 1024
4.5 × 1022
1.2 × 10–25
6.4 × 102
45mgNO3 /1moleNO3 / 1moleN / 14g /10mgLN L 62 g 1 mole NO3 1 mole N
=10 mg/L nitrate as nitrogen (NO3-N)
=10 mg/L nitrate as nitrogen (NO3-N)
2 answers