Question

How do you find the concentration? Is it mol/v. I have to graph this on excel but I need the concentrations.

Use your standard solution (~2 mM Mn) from step 4 of “Dissolving Steel for Analysis of Mn”. Pipet 1.00 mL of the standard into a 100-mL volumetric flask and dilute to 100 mL with 0.05 M HNO3(aq) to prepare a 20-μM standard. Similarly, pipet 2.00, 3.00, 4.00, and 5.00 mL into the other flasks and dilute each to 100 mL with 0.05 M HNO3(aq).  

Step 4 states:

While the steel is dissolving, pipet 10.00 mL of standard Mn2+ (~18 mM) from “Mn2+ Standardization by EDTA Titration” into a 100-mL volumetric flask, dilute to the mark with water, and mix well.

The chemicals used were Mn2+ standard: ~18 mM solution from “Mn2+ Standardization by EDTA Titration”.​

Answer 1

Answer:

• How do you find the concentration? Is it mol/v. I have to graph this on excel but I need the concentrations.
• Use your standard solution (~2 mM Mn) from step 4 of “Dissolving Steel for Analysis of Mn”. Pipet 1.00 mL of the standard into a 100-mL volumetric flask and dilute to 100 mL with 0.05 M HNO3(aq) to prepare a 20-μM standard. Similarly, pipet 2.00, 3.00, 4.00, and 5.00 mL into the other flasks and dilute each to 100 mL with 0.05 M HNO3(aq).
• Step 4 states:
• While the steel is dissolving, pipet 10.00 mL of standard Mn2+ (~18 mM) from “Mn2+ Standardization by EDTA Titration” into a 100-mL volumetric flask, dilute to the mark with water, and mix well.
• The chemicals used were Mn2+ standard: ~18 mM solution from “Mn2+ Standardization by EDTA Titration”.

Explanation:

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