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Experiment: Determination of an equilibrium constant by using a spectrophometer 1 In part 1 of this experiment how are solution of unknown Fe(SCN)2+ made? 2 in part 2 of this experiment,why are approximately equal concentration of the reactants,Fe3+ and SCN, used?
Describe what happen in each case. How would you either report or correct it - determine the melting point of a compound, and then the happens.
Magnesium carbonate, MgCO3, has a Ksp value of 6.80×10?6 . What happens when magnesium and carbonate solutions are mixed to give 2.50×10?3M Mg2+ and 2.00×10?3M CO3 2-?
When you heat baking soda (NaHCO3), it breaks down into sodium carbonate powder (Na2CO3), carbon dioxide and water vapor. Write a correct thermo chemical equation and explain what it tells you about the reaction ( The enthalpy of this reaction is ..
Problem- A 3.3 L sample of CO2(g) at 20.4 oC expands to what volume at 59.7 oC at a pressure of 1.07 atm
a calculator to calculate the average and standard deviation for x1 through x12. i know how to find the average but i dont understand how to findthe standard deviation.
Problem- If 26.00g of calcium hydrogen carbonate react with 430.0ml of 0.742M nitric acid, what volume of carbon dioxide is produced ar 742torr and 12°C?
sample of an unknown was dissolved in 10.7 g acetic acid. If the freezing point depression of the solution was 4.14°C, find the molar mass of the unknown
A technician obtained the following results for the concentration (mg/dL) of cholesterol in a blood sample: 240, 252, 242, 238, 239, and 236. The technician re-measured the cholesterol in the same blood sample using a different method.
State half-reactions for all three halogens that show what would happen if they acted as an oxidizing agent illustrate the electrons being lost or gained by the halogen
A mixture of KCl and KClO3 weighing 1.55 grams was heated the dry O2 generated occupied 1.4x102 ml at STP. What percent of the original mixture was KClO3 which decomposes as follows
In the presence of large excesses of I^-1 ion, the following set of data is obtained. What is the average rate of disappearance of H2O2(aq) in M/s in the first 45.0 seconds of the reaction if 1.00L of H2O2 reacts at 25C and 1.00atm pressure?
A) Determine the [OH-] of a 0.16 M ammonia solution. B) Determine the pH of a 0.16 M ammonia solution. C) Determine the pOH of a 0.16 M ammonia solution.
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