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When a Group III unknown was treated with an aqueous ammonia/ammonium chloride and ammonium carbonate, a white precipitate was produced. To the decante aqueous ammonia and ammonium carbonate were added, resulting in a white precipitate. Next, ammonium acetate and potassium chromate were added to a portion of the colorless solution and no precipitate was observed. Addition of ammonium oxalate to the remainder of the solution produced a white precipitate. Indicate for each ion in Group III whether it was definitely present, definitely absent, or that you cannot decide from the given information.
if 82.7874 grams of oxygen was given off during the decomposition, how many grams of KCIO3 were used?
What is the change in the boiling point of the aqueous solution? and water how man moles of ions are present is solution
minor component that can be hydrolyzed to yield eugenol and acetic acid. What is the structure of the minor component, which has the molecular formula C12H14O3
Energy cost of dissociation was found to be 4 kWh/m3 of CO2. Calculate conversion degree of CO2 into CO and O2 in this system.
describe the observations you would make and write a net ionic equation for any reaction that would occur.
Assuming the solution has a heat capacity of 4.18 J/°C·g and assuming no heat loss to the calorimeter, calculate the enthalpy change for the dissolution of NH4NO3 in units of kJ/mol.
an optically pure compound was diluted to 200.0 mL with water and placed in a polarimeter tube 10.0 cm long. The measured rotation was -2.53° at 25 °C. Calculate the specific rotation of the compound.
what is the lewis structure of C2H2Br2, also is it polar or non polar, are there any resonance structures or isomers?
A sample that weighs 0.1586 grams contains only sodium chloride and potassium chloride was dissolved in water. It took 22.90 mL of 0.1000 AgNO3 to precipitate all of the chloride present.
Calculate the normal boiling point of a 1.7m aqueous solution of the molecular compund sucrose.
A compound contains only carbon and nitrogen and is 46.2% carbon by mass. A gaseous sample of the compound has a density of 2.05 g/L at 927 torr and 105 °C
An impure sample of potassium hydrogen phthalate, KHP, having a mass of 111.07 g was dissolved in water. This acid sample was neutralized by the addition of 310.0 mL of 0.250 M NaOH
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