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What effect on the value of Ca(OH)2's Ksp (6.5x10^-6 ) would sucking up some suspended calcium hydroxide solid have? Would the Ksp value be higher or lower than the normal value? Why?
Consider a saturated solution of calcium fluoride in 0.092 M potassium nitrate. Complete the following tasks, and then answer the question. a) Write the chemical equation corresponding to Ksp.
M HNO3 is mixed with 439 mL NaOH with pH=13.97. What is the pH of the resulting solution?
When ammonia is added to nickel ions in aqueous solution, the water molecules bound to the Ni2+ are replaced by ammonia molecules.
Predict the order of melting point, from low to high, for the following compounds, based on intermolecular forces: CaF2 H2O H2S CH2Cl2 N2
what is the literature value for the Ksp of potassium hydrogen tartrate in water at 10, 22.5, 35, 50 degrees?
The heat of combustion of bituminous coal is 2.5 × 104 J/g. What quantity of the coal is required to produce the energy to convert 100. lb of ice at 0°C to steam at 100°C
When N2O5 (g) is heated it dissociates into N2O3 (g) and O2(g) according to the following reaction: N2O5(g) N2O3(g) + O2(g) Kc= 7.75 at a given temperature. The N2O3(g) dissociates to give N2O(g) and O2(g) according the following reaction:
Write a balanced equation with phase changes for an electrochemical cell that has a copper cathode immersed in a solution of cu+2 ions and a lead anode immersed in a solution of Pb+2 ions
A volume of 40.0 mL of aqueous potassium hydroxide (KOH) was titrated against a standard solution of sulfuric acid (H2SO4). What was the molarity of the solution if 19.2 mL of 1.50 M H2SO4 was needed? The equation is 2KOH(aq)+H2SO4(aq)=K2SO4(aq0+2..
A 120g sample of an unknown substance was heated from 15oC to 30oC. The substance absorbed 458 joules of energy. What is the specific heat of this substance?
Give some values of pressure and temperature at which you are sure that the substance called zinc exists in an equilibrium state as a) solid and b) vapor
The well-preserved remains of a now extinct woolly mammoth is entombed in the permafrost lands of Siberia. Scientists have conducted carbon dating experiments on plant debris found in the stomachs of this mammoth.
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