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Task 1 concerns exploring the thermochromic behavior of cobalt chloride ethanol solutions (CoCl2(EtOH)3) with methanol (MeOH). You are to prepare ratios of CoCl2(EtOH)3 to MeOH between 3:1 to 6:1. The total volume of each prepared ratio must be 4.00 mL. In this course tables must be well-organized, properly titled/labeled and have entries with correct units and reasonable sig figs. Please remember this for all future lab work
Calculate the theoretical amount of NH4NO3 that would be required to change the temperature of 50 ml of water from room temperature 20 C to 5 C.
Enter the sign of H° and S° for the condensation for CO2. Enter the sign as either + or -. Also indicate the temperature conditions (high temperature or low temperature) that favor condensation of CO2
question the reaction a 2b products was found to have the rate law rate kab2. predict by what factor the rate of
When 25.0 ml of 0.500 M H2SO4 is added to 25.0 ml of 1.00 M KOH in a coffee-cup calorimeter at 23.50 degrees Celsius, the temperature rises to 30.17 degrees Celsius.
Calculate the electron affinity in kJ/mol for X in the hypothetical ionic compound MX from the information given below.
Is density of an organic molecule directly related to the molecular weight of a substance. (That is, does density always increase when molecular weight increases) Use the examples above to explain.
What are the H3 O^+ and OH^- concentrations of solutions that have the following pH values? A. pH1 B. pH 13 C. pH 0 D. pH 1.24 E. pH 7.96
A solution is prepared by mixing 50.0 mL of 0.50 M Cu(NO3)2 with 50.0 mL of 0.50 M Co(NO3)2. Sodium hydroxide is added to the mixture. Which precipitates first?
The Kc for the reaction of hydrogen and iodine to produce hydrogen iodide equals 54.3 at 430 C. Calculate the equilibrium concentrations of H2,I2
the assumption that the entropies of deprotonation of the ground and excited state 2-naphthol molecules are equal.
Question- What partial pressure of nitrogen (N2) gas is required in order for 0.00345g of the gas to dissolve in 14.0 mL of pure water. The Henry's law constant for nitrogen gas is 6.1 * 10^-4 atm -1.
Identify these two isomers.
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