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The Ksp of CaSO4 is 2.4 x 10^-5 and that of SrSo4 is 7.6 x 10^-7. If 100mL of 0.01 M CaCl2, 100mL of 0.01 M Sr(NO3)2 and 100 mL of 0.01 M Na2SO4 are mixed together; what is the Ca2+ concentrationin solution and which precipitates will form?
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You have 5 mL of HCl acid (unknown concentration) in a 50 mLvolumetric flask, and bring it up to volume with deionizedwater. Calculate the molarity of the HCl by using the pH equation(pH = -log[H3O+]) , and the dilution ...
An electron is ejected from a metal with a velocity 7.78 x10^5 m/s. If the metal has a threshold frequency of 9.90 x1014 Hz, what was the wavelength of the incident photon?
Explain why the mass of the crucible and anhydrous salt is less than the mass of the crucible and the hydrate. What is the chemical formula of copper (II) sulfate?
What is the calculation of the new temperature of a gas sample has an original volume of 740 ml when collected at 710 mm and 35 o C when the volume becomes 460 ml at 1.20 atm?
What wavelength of light (nm) is required to eject an electron with a speed of 2.0 x 10 6 m/s from a metal with a threshold energy of 3.4 x 10 -18 J?
For the molecule allene, H2 C = C = CH2, give the hybridization of each carbon atom. Will the hydrogen atoms be in the same plane or perpendicular planes?
Nitro glyerine is an explosive used by the mining industry. It detonates according to the following equation: 4C 3 H 5 N 3 O 9 (l)→ 12CO 2 (g) + 6N 2 (g) +10H 2 O(g) + O 2 (g) What volume is occupied by the gases produce ...
What will happen if I decide to test the solubility of sodium chloride in ethanol which is less polar than water.
A compound contains only carbon, hydrogen, and oxygen. Combustion of 10.68 mg of the compound yields 15.48 mg CO2 and 7.39 mg H2O. The molar mass of the compound is 182.2 g/mol. What are the empirical and molecular formu ...
A mixture containing 3.3 moles of NO and 0.76 mole ofCO 2 was allowed to react in a flask at a certaintemperature according to the equation. NO (g) + CO 2 (g) ↔ NO2 (g) + CO (g) At equilibrium 0.21 mole of CO 2 was pr ...
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