a. A 10 ml calibration solution is made by mixing 5 mL of 0.200 M Fe(NO3)3,...
You will be preparing a standard solution by mixing 2 solutions: 0.200 M Fe(NO3)3 and 0.00200 M KSCN. The concentration of the M Fe(NO3)3 solution is 100 times greater than the concentration of KSCN solution. What is the purpose of using a large concentration of Fe(NO3)3 and a small concentration of KSCN to make the standard solution? EXPLAIN
Consider the mixing of 200.0 mL of 0.200 M lanthanum nitrate, La(NO3 )3 , with 400.0 mL of 0.400 M potassium iodate, KIO3 . Calculate the concentration of each of the following ions in the solution: La3+, NO3 –, K+, and IO3 - .
Determination of an Equilibrium Constant 1) If 20.0 mL of 0.00200 M Fe(No3)3 is diluted to 50.0 mL, what is the concentration of Fe^+3 in the diluted solution? 2) Write the equilibrium for the following reaction. Co^+2 +4SCN^-1 <--> Co(SCN)4 ^-2 3) How many mmoles of SCN^-1 ion are there in 3.0 mL of 0.00200 M KSCN?
5. A solution is made by mixing 200.0 ml of 1.5 x 10-4 M Cu(NO3)(aq) with 250.0 ml of 0.20 M NH3(aq). Calculate the concentration of copper ion (Cu? (aq)) in the solution when it reaches equilibrium. (Kr for [Cu(NH3)4]2+ = 1.7 x 1013)
Calculate the molarity of Fe3+ in solution A. Solution A: 10 mL of 0.0600 M Fe(No3)3 + 15 mL DI water.
A student took 5.03 mL 0.200 M Fe(NO3)3 solution, added 25.18 mL of DI water, mixed the resulting solution thoroughly and placed the solution in a 50 mL buret. Then, the student took 10.09 mL of this dilute solution from the buret and mixed it thoroughly with 6.21 mL 0.00200 M NH4SCN and 28.65 mL DI water to form the reaction system. What are the initial [Fe3+] and the initial [SCN-] in this reaction system? ( ) [Fe3+]Initial = 7.47...
For the reaction Fe3+ + SCN 1- FeSCN2+ 9.00 mL of 0.00800M Fe(NO3)3 were diluted to a volume of 450.0 ml, then... 4.00 mL of the diluted Fe(NO3)3 were mixed with 4.00 mL of KSCN and 4.00 mL of HNO3. Calculate the initial concentration of Fe3+ at the time of mixing. Short answer LE- _ (no extra Scientific notation format spaces) How many mL of 0.00200 M Fe(NO3)3 are required to prepared 12.50 mL total volume with a concentration of...
5) If 219.75 mL of a 8.016 M NaCl solution is diluted to a volume of 315.0 mL, what is the final concentration of the dilute solution? 6) Mixing 613.7 mL of 0.816 M Fe(NO3), with excess (NH.),CO, solution, how many grams of Fes(CO), will precipitate? 2 Fe(NO) (0) + 3 (NH),CO, (aq) - Fex(CO), ( + 6 NH.NO, (4)
Calculate the initial concentration of iron(III) in solution #1, #2, #3. Beaker (mL) Table 1. Reagent Solutions Provided by the Stockroom Solution Name Reagent [Reagent] (M) Volume (mL) Standard iron Fe(NO3)3 2.50 x 10 in 0.10 M HNO3 nitric acid HNO3 0.10 120 35 50 250 conc. SCN KSCN 0.50 30 50 dilute SCN KSCN 2.50 x 10-3 30 50 Worksheet 1 #1 5.00 #2 10.00 #3 15.00 Dilute iron (mL) [Fe**] (M) [Fe(SCN)?*] (M) %T 480 58.9 35.8 21.5...
35.0 mL of 0.255 M nitric acid is added to 45.0 mL of 0.328 M Mg(NO3)2. What is the concentration of nitrate ion in the final solution?