Q5) A 63.5 g sample of ground water is found to have a lead concentration of...

Question

Question

Q5) A 63.5 g sample of ground water is found to have a lead concentration of 19.85 ppm. Calculate the mass of lead in the sample in milligrams.

Q4) A 2105 g sample of ground water is found to contain 0.0500 g of arsenic. Calculate the concentration of arsenic in parts per million, ppm.\

science chemistry

Answer 1

Answer #1

mas 0 Rpm concentration lon mass of solute x 106 mass of solution - 19.85= mass of leading - 63.5g M95 of mass of lead = 1.26

Answer 2

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