& Ho Introduction to Geochemistry Exer Chapter 2 Chemical Background Name 1. What is 50 ppm...

Question

Question

Answer 1

Answer #1

Ans 1

Concentration of nitrate ion = 50 ppm

Formula weight M = 62 mg/mmol

We know that

1 ppm = 1 mg/kg

50 ppm = 50 mg/kg

Concentration of nitrate ion C = 50 mg/kg

Moles of nitrate ion = C/M

= (50 mg/kg) / (62 mg/mmol)

= 0.806 mmol/kg

Answer 2

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