How do I solve this and solutionsHomework Answers
3. as per the data
x = +1
y = +3
z = -2
formula = xyz2*3H2O = KFe(C2O4)2*3H2O
4. molarmass = 325.0271 g/mol
5. mass of salt not given
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How do I solve this and solutions
Write the chemical formula for the complex salt using...
Using the correct formula for the green crystals write a balanced chemical equation for their synthesis....
Using the correct formula for the green crystals write a balanced chemical equation for their synthesis. The reactants were iron (III) chloride, potassium oxalate and water. A second product of the synthesis is potassium chloride. Note: the waters of hydration in the iron(III) chloride, and potassium oxalate should not be shown. Include phase labels. Using the masses of iron (III) chloride hexahydrate and potassium oxalate monohydrate from Data Table A, calculate the theoretical yield of green crystals. This is a...
Can't figure out the concentration of the complex of solns. 10, 11, 12, 13, & 14. Modern...
Can't figure out the concentration of the complex of
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Modern Experimental Chemistry Chemistry 153 The Iron(III) Thiocyanate Complex Purpose of the Experiment To determine the chemical formula of a complex ion and measure its formation equilibrium constant Equipment Spectro Vis spectrophotometer and LabQuest, cuvette, 25-mL buret (3), ring stand, buret clamp (2), 50-mL beaker (3), small plastic beakers Reagents SCN, as KSCN, 0.00200 M solution Fe; as Fe(NO), 0.00200 M solution and a...
From Part A: Mass of KxFe(C2O4)y · zH2O prepared : 4.359 g Mass of FeCl3 : 1.60 g From Part B: % ...
From Part A: Mass of KxFe(C2O4)y · zH2O prepared : 4.359 g Mass of FeCl3 : 1.60 g From Part B: % Potassium in compound : 22.70 % % Iron (from ion exchange & titration vs. NaOH) : 10.60 % From Part C: % Oxlate : 55.69 % Now, let's finish the calculation and the determination of the formula of the iron compound: Calculate the % water of hydration : Tries 0/3 Calculate the following for Fe3+: g in 100...
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To receive credit: please write properly annotated balanced chemical reactions, please show all work using dimensional...
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With the completion of the determinations of % potassium, % iron, and % oxalate in the...
With the completion of the determinations of % potassium, %
iron, and % oxalate in the crystals, you may calculate the % water.
The percentage compositionof the crystals,
KxFe(C2O4)y ·
zH2O, has then been completely determined
experimentally. The simplest formula (x,y,z) can now be calculated
from the the percentage composition. Once the formula is know it is
then possible to calculate the percent yield of product that was
obtained in the preparation and purification of the crystals.
From Part A:...
Stoichiometry #2 At Home Practice • Show all work using the factor label method • Use units and label chemical f...
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i have no idea how to do this... 192 EQUIPMENT and CHEMICALS • wire gauze •...
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With this how I calculate the Ammonia solutions pH and Ammonia Buffer solutions ph B. Preparation...
With this how I calculate the Ammonia solutions pH and
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did i solve 1 a corectly or do my numbers need to be switched? Test Tube...
did i solve 1 a corectly or do my numbers need to be
switched?
Test Tube M y 315 dilu LaiculdLIUIS PARTS B AND C Measuring the Freezing Points of Water and Aqueous Solutions 142 Laboratory Data for Determining Pring Pet T hree Decent Solutions Mass of Delonised Water salute Mass of Solute Freezing Point None 4.28 -1.84331 Naci 4, 4337 0.2380 -2.23293 Unknown A -0.2393 2.62978 Unknown B 4.04866 0.7395 -2.14573 1 Use the following steps to determine the...
Can't figure out the concentration of the complex of
solns. 10, 11, 12, 13, & 14.
Modern Experimental Chemistry Chemistry 153 The Iron(III) Thiocyanate Complex Purpose of the Experiment To determine the chemical formula of a complex ion and measure its formation equilibrium constant Equipment Spectro Vis spectrophotometer and LabQuest, cuvette, 25-mL buret (3), ring stand, buret clamp (2), 50-mL beaker (3), small plastic beakers Reagents SCN, as KSCN, 0.00200 M solution Fe; as Fe(NO), 0.00200 M solution and a...
Prelab Questions: (PL1) For 6 galvanic cell combinations in part 1, write a chemical equation for each cell in a direction that would be spontaneous and the overall cell potential (PL2) For part 2, what is the expected cell potential for that concentration cell? (PL3) Draw a data table you will be filling in during the lab. Include all the measurements that will be made in this lab and qualitative observation if needed. Procedure: Part 1) (1) Obtain copper strip,...
To receive credit: please write properly annotated balanced chemical reactions, please show all work using dimensional analysis and correct significant figures. Just a correct result has no value. To facilitate calculations here molar masses of involved elements to be used: 26.982 74.922 137.327 79.904 Aluminum g/mol Arsenic g/mol Barium g/mol Bromine g/mol 40.078 12.011 35.453 1.008 Calcium g/mol Carbon g/mol Chlorine g/mol Hydrogen g/mol 55.845 207.2 Iron g/mol Lead g/mol Lithium Magnesium 24.305 6.941 g/mol g/mol 14.007 15.999 Manganese 54.938...
With the completion of the determinations of % potassium, %
iron, and % oxalate in the crystals, you may calculate the % water.
The percentage compositionof the crystals,
KxFe(C2O4)y ·
zH2O, has then been completely determined
experimentally. The simplest formula (x,y,z) can now be calculated
from the the percentage composition. Once the formula is know it is
then possible to calculate the percent yield of product that was
obtained in the preparation and purification of the crystals.
From Part A:...
Stoichiometry #2 At Home Practice • Show all work using the factor label method • Use units and label chemical formulas for all conversion factors • Report final answer with the correct number of significant figures, unit and chemical formula Limiting Reactant Calculations 2 NO(g) + 5 H2(g) → 2 NH3(g) + 2 H2O(g) Starting with 75.4 g NO and 15.5 g Hz, what is the theoretical yield of NH3 in grams? Calculation based upon NO Calculation based upon H2...
i have no idea how to do this...
192 EQUIPMENT and CHEMICALS • wire gauze • 250-ml beaker - watchglass • alum, KAl(SO4)2-12H20 • unknown hydrate samples S PROCEDURE A. Percentage of Water in Alum Hydrate 1. Weigh a clean, dry, 250-ml beaker covered with a watch glass. Add about 0.8-1.2 g of alum hydrate into the beaker, and reweigh accurately. 2. Support the beaker and watchglass on a ring stand using a wire gauze (Figure 1). Heat the hydrate...
With this how I calculate the Ammonia solutions pH and
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B. Preparation of Ammonia-Ammonium Buffer Solution Note that an ammonia buffer contains the conjugate base, ammonia, and its conjugate acid, the ammonium ion, NH typically added as NH,CI. Accordingly, the pk, value stated in Eq. (7) is that of the buffer's conjugate acid, NH.. For ammonia, pk, -log (1.8 x 107 4.74. (Note that the fact that the pk for NH, is the same value as...
did i solve 1 a corectly or do my numbers need to be
switched?
Test Tube M y 315 dilu LaiculdLIUIS PARTS B AND C Measuring the Freezing Points of Water and Aqueous Solutions 142 Laboratory Data for Determining Pring Pet T hree Decent Solutions Mass of Delonised Water salute Mass of Solute Freezing Point None 4.28 -1.84331 Naci 4, 4337 0.2380 -2.23293 Unknown A -0.2393 2.62978 Unknown B 4.04866 0.7395 -2.14573 1 Use the following steps to determine the...
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