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Complete the following questions prior to coming to lab. An incomplete prelab assignment may lead to a dismissal from lab. 1. Consider the following simple acid-base reaction: HCl (aq) + NaOH (aq) ? NaCl (aq) + H2O (l) A known amount of NaOH is added to a solution containing an unknown quantity of HCl (aq). It is found that 3.8 mL of a 0.01 g/L solution of NaOH is required to completely react with all HCl. How many moles of HCl are present?
Propose the structure of a conjugated diene (no more six carbons) for which 1,2-addition of HBr produces
Commercial electrolytic cells for producing aluminum operate at 5 volts and 100,000 Amperes. How long does it take to produce 1000 kilograms of aluminum
at 25 degrees C a saturated solution of a metal hydroxide has a pH of 9. What is the value of the solubility-product constant (Ksp) of M(OH)2 at 25 degrees C?
Calculate the pH of a 1.39x10^-2 M solution of the decongestant ephedrine hydrochloride if the pKb of ephedrine (its conjugate base) is 3.86
Write a chemical equation describing the condensation process for CO2 and a chemical equation describing the freezing process for CO2. For each process discuss the change in enthalpy and entropy that occurs.
Assume a density of 1.08g/mL for the solution. A)Find molarity of solution B)Find molality of solution C)Calculate mass percent of solution
A 15.0- mL sample of 0.100 Ba(OH)2 is titrated with 0.125 M HCl. Calculate the pH for at least five different points throughout the titration curve and make a sketch of the curve.
What is the pH when 100 mL of 0.1 M HCl is titrated with 50 mL of 0.2 M NaOH?
If the heat of combustion for a specific compound is -1390.0 kJ/mol and its molar mass is 94.11 g/mol, how many grams of this compound must you burn to release 256.70 kJ of heat
How many milliliters of 0.200 M NaOH will be required to titrate 19.6 mL of 0.479 M H2SO4
A Si wafer is treated in phosphorus vapor at 1000o C so that the phosphorus concentration at the surface is kept at the solubility limit of 1021/cm3.
Write a balanced equation to show the polymerisation of the molecule CF2CF2. Show two repeat units of the polymer.
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