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Calculate the [SCN-] solution A, where 5.7 mL of 2.910?3 M NaSCN is diluted to 44.0 mL with 0.1 M Fe(NO3)3. Next calculate the [FeSCN2+] in the solutions prepared by diluting volumes of solution A with 0.1 M Fe(NO3)3 to a final volume of 1.0101 mL. Do this for 1.0, 3.0, 5.0, 7.0, and 9.0 mL. Keq[Fe3+] = [FeSCN2+]/[SCN?]
Balance the following equation, using the smallest possible integer coefficients. Then enter the 4 coefficients in the 4 answer boxes. (Suppose the coefficients were 6, 5, 4 and 3 for the 4 substances, from left to right in the equation.
What are the concentrations of acetic acid and sodium acetate in a 0.4 M acetate buffer, pH 5.2. The pKa of acetic acid is 4.77.
If the water in a well has 1000.0 mg/L of CaCO3 dissolved in it, How many grams of Na2C2O4 could you mix with 100.0 mL of that water before a precipitate would form
Determine Ssys separately for the volume and temperature changes and show that ?Ssys = 0 for a reversible adiabatic process. If the expansion had instead occurred irreversibly against a constant external
How many grams of iron are formed when 275 grams of carbon monoxide react with excess Fe2O3
Can someone explain how to do these? I feel like the first one is E as KOH and HCL are strong base/strong acid.
The vapor pressure of chloroform (CHCl3, molar mass 119.5 g/mol) is 4.00 x 10^2 torr at 42.7 C. if 40.0 g of CHCl3 is enclosed in a 10.0 L container, how much liquid CHCl3, if any, will remain in the container
This method assumes that no argon was trapped in the rock when it was formed frothe molten material. A meteorite was found to have equal amounts of 40K and 40Ar. a) Of the potassium-40 that was originally present, what fraction has decayed? b) how..
if adding 62.0 calories to an aluminum block causes the temperature of the aluminum to increase from 62*F to 89*F, what is the mass in grams of the aluminum block
The electrolysis of molten Al2O3 at 980 ºC is used to produce metallic aluminum. A current of 360 A is used in the electrolysis cell. What is the rate of formation of aluminum, in kilograms per hour?
The boiling points of HCl and CO2 are nearly the same (-85 degrees C and -78 degrees C). Explain why CO2 can be removed from an aqueous solution by boiling briefly while essentially no HCl is lost even after boiling for one hour or more
Calculate the pH at the equivalence point for the titration of a solution containing 1250.0 mg of hilariamine (MW = 104.75 g/mol, Kb = 7.1×10-4) with 0.1000MHCl solution.
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