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The solubility of an unknown salt, M2Z, in a 0.0768 M CaZ solution is 5.6x10-10 mol/L. Calculate the Ksp for M2Z
calculate the mass of Fe(NO3)3 that you would need to yield a similar conductivity value as the NaCl
Now take another 37 mL of the 0.50 M pH 6.83 buffer and add 1.3 mL of 1.00 M NaOH. Using steps similar to those above, calculate the new pH of the solution.
What is the theoretical economy of heating A mixture of sodium carbonate and sodium bicarbonate. sodium carbonate is the desired product and water and carbon dioxide are the undesirable wastes .
A 0.551 L solution of 1.51 M oxalic acid (Ka1= 6.5e-2 and Ka2 = 6.1e-5) is titrated with 1.85 M KOH. What will the pH of the solution be when 0.8140 L of the KOH has been added
The distance between layers in a crystal is 321 pm. X rays are diffracted from these layers at an angle of 45.6°. Assuming that n = 4, calculate the wavelength of the X rays in nm.
Explain when measuring pH during a titration. We have a buret containing NaOH (aq) of known concentration. Explain under the buret we have a beaker containing HCl (aq) of unknown concentration. Explain with a pH meter in the beaker that reads 1.30..
the presence of the radioactive gas radon rn in well water obtained from aquifers that lie in rock deposits presents a
Based on the given chemical equation, how many grams of aluminum are needed to react with 0.6 moles of hydrochloric acid? Al + HCl yields AlCl3 + H2
If none of the available reagents can be used for this purpose, then identify another reagent from the table that could be used. For each reagent you've identified, write down a balanced chemical equation for the reaction that occurs.
Problem- If a battery releases 550 J of energy and 325 J is used to do work, then how much energy is released / absorbed as heat
A deep-sea diver uses a gas cylinder with a volume of 10.0 {\rm L} and a content of 51.8g of {\rm O}_{2} and 33.6g of {\rm He}. Calculate the partial pressure of each gas and the total pressure if the temperature of the gas is 20^\circ C.
Calcium reacts with oxygen to make calcium oxide, CaO. Explain what is the maximum mass of CaO(s) in grams that could be prepared from 21.86 g of Ca(s) as well as 11.27 g of O2(g)
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