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Identify the Qual I cation(s) that is(are) confirmed present in a reference solution by: the formation of a precipitate? the color of a soluble complex ion? the characteristic color of a flame test? the evolution of a gas?
If iron is oxidized to Fe2+ by a copper(II) sulfate solution, and 0.704 grams of iron and 12.6 mL of 0.581M copper(II) sulfate react to form as much product as possible,
A solution gave a precipitate when ammonium oxalate was added but gave no precipitate when ammonium sulfate was added. For each Magnesium group ion(Barium, Magnesium, Strontium, and Calcium) tell whether the ion
An industrial vat contains 2,500 liters of an acidic aqueous solution with a pH of 3.5. How many grams of NaOH need to be added to raise the pH to 4.3?
Two reactions have the same activation energy, but their rates at the same temperature differ by a factor of 10. Explain.
A fishing boat accidentally spills 9 barrels of diesel oil into the ocean. Each barrel contains 42 gallons. If the oil film on the ocean is 2.5 × 10^2 nm thick, how many square meters will the oil slick cover?
A galvanic cell is formed by connecting an iron (III)/ iron metal electrode to a zinc (II)/ zinc metal electrode through a suitable salt bridge.
Calculate the percent composition of each element in the compounds Benzene(C6H6) and Acetylene(C2H2). Since these are different compounds with very different properties, it may seem that this is an exception to the law of definite proportions. Exp..
A 3.0 L cylinder is heated from an initital temperature of 273 K at a pressure of 105 kPa to a final temperature of 377 K. Assuming th amount of gas and the volume remain the same, what is the pressure (in kilopascals) of the cylinder after being ..
considering the energetics of change of H and change of S values of solute/solvent interation, solvent/solbent interactions and aolut/solvent interactions
How much heat (in kJ) is needed when 58.9 g of water warms and boils from 47.91 degrees C to 100 degrees C
How many GRAMS of zinc iodide are present in 1.56 moles of this compound? and explain to me how to find it
An unknown, rectangular substance measures 3.6 cm high, 4.21 cm long, and 1.17 cm wide. If the mass is 21.3g, what is this substance's density?
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