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A solution is 0.1 mM in NaF, Na2CO3, and Na3PO4. What would be the order of precipitation as a source of Ca2+ is added gradually to the solution? The relevant Ksp values are Ksp [CaF2] = 4.0×10-11, Ksp[CaCO3] = 8.7×10-9, Ksp[Ca3(PO4)2] = 1.3×10-32.
How much energy is needed to warm 0.500 g of silver from 25.0 degree C to 27.5 degree C? The specific heat of silver is 0.24J /g. degree C
what mass spectrometry techniw would be most effective in determining the chemical structure?
Calculate the energy that must be transferred as heat to a van der Waals gas that expands reversibly and isothermally from Vi to Vf.
When the following reaction is balanced in basic solution using the lowest possible whole number coefficients, the coefficient of Cr(OH)3(s) will be: Cr(OH)3(s) + Cl2O7(aq) --> CrO42-(aq) + ClO2-(aq)
A student measures the conductivity of an Fe2(SO4)3 solution and determines it to be a strong electrolyte. The student incorrectly lists the species in solution as O-2, S-2, Fe+3. Give the correct list of species in the solution.
What substance ionizes nearly completely in aqueous solutions and produces hydronium ions? a weak base, strong base, weak acid, or strong acid.
The excess of acid needed 16ml of 0.25M Naoh for neutralization. then Calculate the percentage of calcium carbonate and magnesium carbonate?
When a 0.369 g sample was studied by combustion analysis, 0.662 g of CO2 and 0.0897 g of H2O formed. How many moles of each of the following were in the original sample? C: ? H: ? Cl: ? What is the molecular formula?
What's the total pressure generated by a mixture of gases if the pressure of oxygen is 465 mm Hg, the pressure of nitrogen is 1.1atm and the pressure of chlorine is 501 torr? Report your answer in torr. Report your answer to no decimal places.
Consider the following reaction, equlibrium concentrations, and equilibrium constant at a particular temperature. Determine the equilibrium concentration of SO3(g)
The density of acetonitrile is 0.786 , and the density of methanol is 0.791 . A solution is made by dissolving 21.0 in 98.5
a graduated cylinder reads 4 ml of water.then a shell is dropped into it and the water level rises to 12 ml.what is the volume of the shell?
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