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If a 0.100 molar solution of NaOH is added to a solution containing 0.200 molar Ni2+, 0.200 molar Ce3+, and 0.200 molar Cu2+, which metal hydroxide will precipitate first? Ksp Ni(OH)2 = 6.0 X 10-16, Ksp Ce(OH)3 = 6.0 X 10-22, Ksp Cu(OH)2 = 4.8 X 10-20
It takes 49.0 J to raise the temperature of a 9.60 g piece of unknown metal from 13.0 degrees celsius to 24.5 degrees celsius. what is the specific heat for the metal?
When a solution of copper(II) sulfate is mixed with a solution of sodium carbonate, a precipitate forms. Write each of the following equations for the reaction between copper(II) sulfate and sodium carbonate.
what is the minimum number of Kilo Joules needed to change 40 grams of water 100 C to steam at the same temperature and pressure?
Predict whether zinc and silver react with 1 M sulphuric acid to give out hydrogen or not. Given that the standard potentials of zinc
With respect to the corrosion of steel in concrete, explain the significance of the following terms: carbonation of concrete, passivity of steel, electrical resistivity of concrete, state of oxidation of iron.
Calculate the morality of a solution made by dissolving 0.750 grams of Na2 SO4 in enough water to form exactly 850 mL of solution. How many moles of KMnO4 are present in 250 mL of a 0.0475 M solution?
how many liters of C6H14(l) measured at 20 degC must be burned to provide enough heat to warm 26.9m^3 of water from 17.7 to 32.6degC .
Typical lab experiment exploring le chateliers principle. HCl is added to Pb(NO3) until precipitate forms. Question asks: Explain why PbCl2 did not precipitate immediately on addition of HCl. What condition must be me by [PB2+] and [cl-] if PbCl2 i..
If the vapor pressure of ethyl ether and ethyl alcohol at 20°C are 375 torr and 20.0 torr, respectively, the vapor pressure of the solution at 20°C
suppose new element with atomic number 120 is discovered.if some isotopes of this element have 122 nuetrons and some have 124 neutrons,what can you infer about the atomic mass of the element.
Potassium chlorate can be decomposed to o2 and potassium chloride. Calculate the mass of potassium chlorate that must react to procedure 187.1 ml of dry 02 at STP.
The following molecular equation represents the reaction that occurs when aqueous solutions of silver nitrate and aluminum chloride are combined.
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