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1.) Explain what you would do to prove that a solution contained lead(II) ion?
2.) You are given a white solid and told that it is either potassium nitrate or silver nitrate. Explain what you would do to determine the identity of the solid?
3.) You are told that an acid is either hydrochloric acid or nitric acid. What simple test could you carry out to tell which acid it is?
4.) You are given a solution and asked to determine which Group I cations are present in it. Addition of hydrochloric acid results in the formation of a precipitate. The precipitate is washed with hot deionized water. When the filtrate from hot water washing is tested with potassium chromate solution, a precipitate forms. When a solution of ammonia is added to the remaining precipitate from the addition of HCL, it completely dissolves. What do you conclude?
5.) A yellow solid is either lead(II) chromate or potassium chromate. What would you do to tell which compound the solid is?
pure acetic acid known as glacial acetic acid is a liquid with a density of 1.049 gmol at 25 c. calculate the molarity
The volume percentage of CO2 in a mixture of that gas with N2 was determined by bubbling the mixture at 1.00 atm and 25*C through a solution of 0.0100 M NaHCO3 and measuring the pH. If the equilibrium pH was 6.50, what is the volume percentage of ..
an aerosol spray can with a volume of 456 ml contains 3.09 g of propane gas c3h8 as a propellant. if the can is at
Write out a wave function for a one dimensional free particle with constant probability of finding the particle at amynpoint in one dimension
To what final volume should you dilute 60.0 mL of a 5.90M KI solution so that 20.0 mL of the diluted solution contains 3.30 grams of KI
Calculate the sodium ion concentration when 80.0 mL of 3.2 M sodium carbonate is added to 25.0 mL of 2.3 M sodium bicarbonate.
Specify which of the following are oxidation-reduction reactions, and identify the oxidizing agent, the reducing agent, the substance being oxidized, and the substance being reduced.
Using the structure of mathyl orange as an example, draw resonance froms to show how conjugation extends throughout the molecule.
Write the electron configuration of the atom in the third row of the periodic table that has the smallest E_{{rm{i}}4}.
What is the barium ion concentration in a saturated barium fluoride solution made by adding solid BaF2 until no more dissolved
A 2.067-g sample of a monoprotic acid was dissolved in water. It took 25.24 mL of a 0.1578 M NaOH solution to neutralize the acid. Calculate the molar mass of the acid.
How can you calculate the quantitative precipitation of barium in a solid mixture of sodium chloride and barium chloride
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