Question
In: Chemistry
A standard iodate solution is prepared at 22.0 °C by dissolving 0.9123 g (uncorrected mass) of...
A standard iodate solution is prepared at 22.0 °C by dissolving 0.9123 g (uncorrected mass) of KIO3 with deionized water in a 499.92 mL volumetric flask. To standardize the Na2S2O3 solution, a 10.005 mL aliquot of the KIO3 solution is acidified, treated with excess KI, and titrated with Na2S2O3, requiring 22.05 mL to reach the end point. Finally, a 10.005 mL aliquot of unknown Cu solution is reduced with excess KI. The liberated iodine requires 31.46 mL of Na2S2O3 solution to reach the end point. Calculate the unknown Cu concentration in g/L.
Solutions
queen_honey_blossom answered 2 years agoRelated Solutions
A standard iodate solution is prepared at 22.0 °C by dissolving 0.9123 g (uncorrected mass) of...
A standard iodate solution is prepared at 22.0 °C by dissolving
0.9123 g (uncorrected mass) of KIO3 with deionized water in a
499.92 mL volumetric flask. To standardize the Na2S2O3 solution, a
10.005 mL aliquot of the KIO3 solution is acidified, treated with
excess KI, and titrated with Na2S2O3, requiring 22.05 mL to reach
the end point. Finally, a 10.005 mL aliquot of unknown Cu solution
is reduced with excess KI. The liberated iodine requires 31.46 mL
of Na2S2O3 solution...
A standard FAS solution is prepared by dissolving 0.1221 g of FAS (uncorrected mass) in water...
A standard FAS solution is prepared by dissolving 0.1221 g of
FAS (uncorrected mass) in water in an amber bottle. The dry weight
of the capped bottle is 256.77 g; the total weight of the bottle
plus standard FAS solution is 750.13 g. Calculate the concentration
of this solution in mg Fe/g soln. (Note that FAS has a density of
1.86 g/mL and contains 14.24087% Fe.) Then, a calibration standard
test solution is made by dispensing 3.8514 g of the...
An EDTA standard was made at 22.5 °C by dissolving 0.6206 g (uncorrected mass) of Na2H2EDTA·2H2O...
An EDTA standard was made at 22.5 °C by dissolving 0.6206 g
(uncorrected mass) of Na2H2EDTA·2H2O in a 499.859 mL volumetric
flask. Several 9.9873 mL aliquots of unknown were titrated for
total divalent metal ions, and required an average of 23.197 mL of
EDTA solution to reach the end point. After precipitation of Mg2+
from several additional 9.9873 mL aliquots of unknown, an average
of 15.660 mL of titrant was required to reach the end point. All
blanks were zero....
Calculate the concentration of an iodate solution prepared by dissolving 1.9853 g of KIO3 and diluting...
Calculate the concentration of an iodate solution prepared by
dissolving 1.9853 g of KIO3 and diluting to 500 mL with
distilled water in a volumetric flask.
A 25 mL aliquot of a 0.0195 M KIO3 solution is added
to a flask containing 2 g of KI and 10 mL of 0.5 M
H2SO4. The resulting solution is titrated to
a starch endpoint with 34.81 mL of the thiosulfate solution.
Calculate the concentration of the thiosulfate solution.
How will you know...
(a) Potassium iodate solution was prepared by dissolving 1.022 g of KIO3 (FM 214.00) in a...
(a) Potassium iodate solution was prepared by dissolving 1.022 g
of KIO3 (FM 214.00) in a 500 mL volumetric flask. Then 50.00 mL of
the solution was pipetted into a flask and treated with excess KI
(2 g) and acid (10 mL of 0.5 M H2SO4). How many millimoles of I3−
are created by the reaction
b) The triiodide from part (a) reacted with 37.57 mL of Na2S2O3
solution. What is the concentration of the Na2S2O3 solution?
(c) A 1.223...
a) A standard ZnCl2 solution is prepared by dissolving 0.6328 g of Zn in an HCl...
a) A standard ZnCl2 solution is prepared by dissolving 0.6328 g
of Zn in an HCl solution and diluting to volume in a 1.00 L
volumetric flask. An EDTA solution is standardized by titrating a
10.00 mL aliquot of the ZnCl2 solution, which requires 10.84 mL of
EDTA solution to reach the end point. Determine the concentration
of the EDTA solution.
b) A 1.4927 g sample of powdered milk is dissolved and the
solution titrated with the EDTA solution prepared...
A solution is prepared by dissolving 12.36 g of CaCl2 ( an electrolyte, molar mass= 111g)...
A solution is prepared by dissolving 12.36 g of CaCl2 ( an
electrolyte, molar mass= 111g) in 135g of H2O ( molar mass =18.0g).
The resulting solution has a density of 1.10 g/ml. Calculate the
molarity of CaCl2 in the solution.
A. Calculate the mass percent (m/m) of a solution prepared by dissolving 51.22 g of NaCl...
A. Calculate the mass percent (m/m) of a solution prepared by
dissolving 51.22 g of NaCl in 151.9 g of H2O.
B. Vinegar is a solution of acetic acid in water. If a 265 mL
bottle of distilled vinegar contains 19.2 mL of acetic acid, what
is the volume percent (v/v) of the solution?
C. Calculate the mass/volume percent (m/v) of 20.5 g NaCl in
75.0 mL of solution.
D. Calculate the molarity (M) of 155.2 g of H2SO4 in...
a) What is the molarity of the solution that was prepared by dissolving 3.25 g of...
a) What is the molarity of the solution that was prepared by
dissolving 3.25 g of sulfuric acid in water to a total volume of
500.0 mL?
b)What is the molarity of the hydrogen ion in part a if you
assume the sulfuric acid ionizes completely? Write a balanced
chemical equation.
A solution is prepared by dissolving 23.7 g of CaCl2 in 375 g of water. The...
A solution is prepared by dissolving 23.7 g of CaCl2 in 375 g of
water. The density of the resulting solution is The mole fraction
of Cl- in this solution is __________ M.
ADVERTISEMENT
ADVERTISEMENT
Latest Questions
- Write a c++ program to load two column of numbers, do arithmetic operations to the data...
- A forklift can be leased for $3000 per month, with maintenance and insurance included. Alternatively, the...
- Assume that I can borrow money at a rate of 10% per year, but that I...
- The newly elected president Susan implements some policies with the intention of boosting income. She succeeds...
- Multiple Production Department Factory Overhead Rates The total factory overhead for Urban Styles, Inc. is budgeted...
- using this code under, I want when the user input only letter q an error message...
- 1. Keeping in mind the various definitions of operating system, consider whether the operating system should...
ADVERTISEMENT