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Calculate the work done if a gas is compressed from 8.1 L to 3.9 L at constant temperature by a constant pressure of 2.3 atm, and give your answer in units of joules.
Starting with Benzyl alcohol (PhCH2OH), ethyl acetoacetate (CH3COCH2COOEt) and any other neccesary organic or inorganic reagents outline a synthesis
Inversion of Configuration and Determination of R/S. Draw a compound with an asymmetric center. Rotate so that you can determine whether it is R or S. Invert the stereochemistry
Use the systematic treatment of equilibrium to determine the pH and concentrations of species in 1.00 L of solution contatining 0.070 lysine HL 0.055 mol aspartic acid H2A and 0.0080 mol NaOH. Consider just acid base chemistry. Ignore ion pairing ..
Experiment you measured teh effect of changing temperature on the pressure of a conatined gas at constant volume.
A 1.502 gram sample of a compound of aluminum and sulfur is known to contain exactly 0.540 grams of aluminum. Determine the empirical formula for the substance.
A 25ml sample of solution containing thallium(I) (TI) was treated with K2CrO4 to perticipate thallium chromate. The solid TI2CrO4 was filtered, washed to remove excess chromate, and then dissolved in dilute H2SO4
What is the identity of the precipitate and what is the change in enthalpy of the reaction per mole of copper? Assume the calorimeter absorbs negligible quantity of heat and the specific heat and density of the solution are that as pure water.
Suppose that you first titrated 25.0 mL of 0.500 M HCL with 0.500M NaOH and then 25.0 mL of 0.500 M of a weark acid HA with 0.500M NaOH. How would the titration curves compare at 10 or 15 ml of NaOH beyond the equivalence points? Explain.
When 50 grams of iron absorbs 1.0 kJ of heat its temperature increases by forty degrees celsius. What is the molar heat capacity of iron?
Explain how would prepare 2.5 mL. of a solution with an equal pAg from 7.5 to AgNO3 and Ag2SO4. Remember that the pAg will serve to determine the concentration of Ag + in solution.
Calculate the experimental value for Ksp for KHP and determine whether it is within 10% of the theoretical Ksp value (solubility = 8.0g/L). If not, give one reason why this error might have occurred.
Determine how many micrograms of herbicide are present in 10 lb of soil if the herbicide level in the soil in a corn field was observed at 3.0 ppb. ?
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