Question

DO ALL PARTS OF QUESTION AND USE SIGNIFICANT FIGURES!!!!!!!!! IF YOU DO NOT DO THIS I WILL DOWNVOTE YOU

HERE ARE THE QUESTIONS:

QUESTION 1 For all of the samples, [Fe3+10 = _M QUESTION 2 For sample 1, [SCN lo = _M. QUESTION 3 For sample 2, [SCN lo = _M

INFORMATION TO USE FOR CALCULATING QUESTIONS:

Answer 1

1. For all samples [Fe³⁺]₀ = initial [Fe³⁺] = ?

For all samples , volume of 0.00200 M Fe(NO₃)₃ = 5.00 ml

Total volume of solution : 10.00 ml

Thus, [Fe³⁺]₀ for all samples = ( 0.00200 mol/L) * 5.00 ml /  10.00 ml = 0.00100 mol /L

or   [Fe³⁺]₀ for all samples =  0.00100 mol /L = 0.00100 M = 1.00*10^-3 M

2.

For sample -1 [SCN^-]₀ = sample -1 initial [SCN^-] = ?

For all samples , volume of 0.00200 M KSCN = 1.00 ml

Total volume of solution : 10.00 ml

Thus, For sample -1 [SCN^-]₀ = ( 0.00200 mol/L) * 1.00 ml /  10.00 ml = 0.000200 mol /L

or   For sample -1 [SCN^-]₀ =  0.000200 mol /L = 0.000200 M = 2.00*10^-4 M

3.

For sample -2 [SCN^-]₀ = sample -2 initial [SCN^-] = ?

For all samples , volume of 0.00200 M KSCN = 2.00 ml

Total volume of solution : 10.00 ml

Thus, For sample -2 [SCN^-]₀ = ( 0.00200 mol/L) * 2.00 ml /  10.00 ml = 0.000400 mol /L

or   For sample -2 [SCN^-]₀ =  0.000400 mol /L = 0.000400 M = 4.00*10^-4 M