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When a strong base is added to a solution of CuSO4, which is pale blue, a precipitate forms and the solution above the precipitate is colorless. What is the net chemical equation that describes this reaction? Include the phases of all species in the chemical equation.
When ammonia is then added, the precipitate dissolves and the solution turns a deep navy blue. What is the net chemical equation that describes this event? Include the phases of all species in the chemical equation.
Water and 8 mol/L potassium nitrate solution are mixed to produce 700mL of a solution with a concentration of 6.mol/L. What volumes of water and potasium nitrate are used.
The elemental mass percent composition of malonic acid is 34.63% C, 3.87% H, and 61.50% O. Determine the empirical formula of malonic acid. Express your answer as a chemical formula.
The mechanism by which these compounds kill insects and people is unknown. D. These compounds kill insects and people by stimulating acetylcholinesterase, an enzyme of the nervous system.
A buffer solution is prepared by dissolving 1.50g each of benzioc acid C6H5CO2H and sodium benzoate NaC6H5CO2 in 150.0mL of solution.
sample of KHP required 33.86 mL of sodium hydroxide, what was the molarity of the sodium hydroxide solution?
Calculate the equilibrium partial pressures of all species when CO and Cl2, each at an intitial partial pressure of 1.53 atm, are introduced into an evacuated vessel at 600 K.
Why is the intercept of a calibration curve of absorbance vs concentration not zero?
if 489 mg gas occupies 249 mL at 80 degrees celcius and 745 mmHg of pressure, what is the molar mass of the gas.
Calculate the pH of a buffer formed by mixing 60. mL of 0.10 M lactic acid with 88 mL of 0.24 M sodium lactate.
4 KO2 + 2 H2O + 4 CO2 ==> 4 KHCO3 + 3 O2 How many moles of O2 will be produced if 5.86 moles of CO2 react completely?
What is the similarity in these diagrams? The sodium ion and the neon atom are isoelectronic (have the same electron configuration).
calculate the mass of agcl and h2s formed when 85.6 g of ag2s reacts with excess hcl.
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