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4. By referring to the theory and procedure sections, complete table 1 below by calculating the initial SCN- and equilibrium Fe(SCN)2+ concentrations for each of the five standard solutions. Keep a copy for your records in order to complete the lab report calculations. Show sample calculations. Table 1: Concentration of the five standard solutions for the reaction of Fe3+ (aq) + SCN- (aq) Fe(SCN)2+ (aq) ??Standard ??Volume of SCN- (mL) Initial [SCN-] (M) ? ?[Fe(SCN)2+] (M) ? 1 2.5 2 2.0 ? ? 3 ??1.5 ? ? ? 4 1.0 5 ?? 0.5
Use the values from the table of reduction potentials on the last page to determine ?Gº and Keq for the reaction as listed below. Pb (s) + Sn2+ (aq) ? Pb2+ (aq) + Sn (s) ?Gº
Benzoic acid has a Ka value of 6.3x10^-5. A 35 ml sample of .13 M benzoic acid is titrated with a .15M solution of NaOH.Find the pH.
a current of 2.40 a is passed through a solution containing cu2aq for 30.0 minutes with copper metal being deposited at
Bonding (16 points) Draw the structure of the compound having the condensed formula CH3COCCH. Indicate the hybridization of each carbon in the structure. What are the bond angles at each carbon
Calculate the volume of 6.00 M NaOH that can be added to a buffer composed of 0.160 mol CH3CHOHCO2H and 0.179 mol CH3CHOHCO2- in 500 mL water before the buffer capacity is exceeded.
The freezing point of ethanol (C2H5OH) is -114.6 degrees Celcuus. The molal freezing point depression constant for ethanol is 2.00 Celcius/m. What is the freezing point (celcius) of a solution prepared by dissolving 50.0 g of glycerin
The AM station KBOR plays your favorite music from the 20s and 30s at 1290 kHz. Find the wavelength of these waves
The tripeptide alanyllysylaspartate contains four ionizable groups with pKas of 2.0, 3.9, 9.9, and 10.5. Calculate the pI for this molecule.
What mass of a copper ore consisting of 46% copper(I) sulfide must be mined in order to produce 1.0 x 10^3 kg (1.0 metric ton) of copper metal?
what is the ratio of the rate of reaction A to reaction B ? B) if the initial concentrations of the reactants are both 1.80 M, what is the ratio of the rate of reaction A to reaction B ?
How many liters of hydrogen gas are collected over water at 18 degrees Celsius and 725 mmHg when 0.84 g of lithium reacts with water?
A solution is made by mixing 12.0 g of NaOH and 75.0 mL of .200 M HNO3. Write a balanced equation for the reaction that occurs between the solutes. Calculate the concentration of each ion remaining in solution. Is the resultant soluiton acidic or ..
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