3 of 4 Map A student prepares a solution by mixing 5.70 mL 0.0180 M Fe(NO3 and 7

Question

3 of 4 Map A student prepares a solution by mixing 5.70 mL 0.0180 M Fe(NO3 and 7.40 mL 0.0750 M KSCN. Calculate the initial concentration of each reactant in the solution. Set up the calculation by entering the values below and choosing the correct units. Make sure to include the correct number of significant figures. Fe(NO3 Number Number Number KSCN: a Number Number Number Hint Previous ® Give Up & View Solution Check Answer o Next a Exit about us l careers l partners privacy policy l terms of use contact us

Explanation / Answer

Q1.

The final volume after mixing is

5.70 mL + 7.40 mL = 13.1 mL

Fe(NO3)3  

0.0180 M x 5.70 mL / 13.1 mL = 0.00783 M

KSCN

0.0750 M x 7.40 mL / 13.1 mL = 0.0424 M

Only dilution is considered and this calculation is typical for dilutions.

(Final concentration = Initial concentration x initial volume/final volume.)

Q2.

Data from pag 7.3 not provided.

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