What is the ppm concentration of an aqueous solution with 0.0050% Ag+ ions?

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Discussion Overview

The discussion revolves around calculating the ppm concentration of an aqueous solution containing 0.0050% Ag+ ions. Participants are exploring the conversion from percentage concentration to ppm, addressing the assumptions and units involved in the calculation.

Discussion Character

  • Homework-related
  • Mathematical reasoning
  • Conceptual clarification

Main Points Raised

  • One participant presents a calculation attempting to convert 0.0050% Ag+ ions to ppm, suggesting that 0.0050% corresponds to 0.00005g in 1 L of solution.
  • Another participant questions the calculation, seeking clarification on the steps and the meaning of the percentage notation used.
  • A third participant explains that the percentage represents the amount of Ag ions relative to the whole solution.
  • Further clarification is requested regarding the origin of the grams in the calculation and the volume context for the 0.00005g value.
  • Participants agree on the assumption of 1 L of solution but raise questions about the mass of the solution itself.

Areas of Agreement / Disagreement

There is no consensus on the calculation method or the interpretation of the percentage notation. Multiple viewpoints and questions remain unresolved.

Contextual Notes

Participants express uncertainty about the units and the implications of the percentage concentration, as well as the assumptions regarding the volume of the solution.

brycenrg
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Homework Statement


An aqueous solution is found to be 0.0050% Ag+ ions. Calculate the ppm concentration of the solution.

Homework Equations


1mg / 1 L

The Attempt at a Solution


0.0050%/100 = 0.00005g
Assuming there is 1 L of solution

.00005g *(1/1000)

0.00000005 mg/L

1mg/L = 1 ppm

0.00000005 ppm
 
Last edited:
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Hi brycenrg:

I don't understand your attempt at a solution. Can you explain the steps?

I also don't understand the notation: 0.0050% Ag% ions. What do the percent signs mean?

Regards,
Buzz
 
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The percent is the amount of Ag ions of the whole solution, pretty sure
 
brycenrg said:
0.0050%/100 = 0.00005g

Doesn't make much sense to me. Where did the g come from? Is it 0.00005g in 1 L, in 100 L, in any volume?

You are right about assuming 1 L of a solution. What would be its approximate mass?
 

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