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You mix together the following three solutions (the order of mixing doesn't matter):
100.0 mL 0.100 M Na2SO4, 50.0 mL 0.300 M ZnCl2, 100.0 mL 0.200 M Ba(CN)2
Of all the possible salts that can form from these cations and anions, only two are insoluble: zinc cyanide and barium sulfate. Thus, both of those salts will precipitate out of solution. Calculate the molarity of each ion remaining in the solution following complete precipitation of these two insoluble compounds. Note: Some of the ions will have been completely consumed by the precipitation reactions; thus their concentrations will be effectively zero.
a solution is prepared by dissolving 25.0 g of ammonium sulfate in enough water to make 100.0 ml of stock solution. a
The equilibrium constant for the following gas phase reaction is 0.50 at 600°C. A mixture of HCHO, H2, and CO is introduced into a flask at 600°C.
A basketball with a volume of 3.50 Liters is left in a car when the temperature is 298 K. What will the volume of the ball be as the car heats up to 305 K during the day?
rotational absorption lines from 1h35cl gaswere found at the following wavenumbers 83.32 104.13124.73 145.37 165.89
Professor Higgins has 20 students in his class. For each student, Professor Higgins will enter the student's name and store into a "names" array, then input the value for each of the averages (exam, quiz, and lab). Using the weighting above, the prog..
Addition of NH3 precipitated Fe2O3*xH2O, which was ignited to give 0.264g of Fe2O3 (FM 159.69). What is the average mass of Fe2SO4*7H2O (FM 278.01) in each tablet?
At -11.0 °C (a common temperature for household freezers), what is the maximum mass of sorbitol (C6H14O6) you can add to 2.50 kg of pure water and still have the solution freeze? Assume that sorbitol is a molecular solid and does not ionize when i..
What is the mass of a single atom of gold in kilograms? Concentrated sulfuric acid has a density of 1.84g/mL. What is the volume of 50.0g of the acid? What is the mass of 50.0mL of the acid?
What ions and/or molecules are present in relatively large proportions in a solution of a soluble ionic compound NaCl (aq)
A 1.0 L buffer solution is 0.250 M LiC2H3O2 and 0.050 M HC2H3O2 . Which of the actions will destroy the buffer? (a)adding 0.050 moles of LiC2H3O2(b)adding 0.050 moles of HCl(c)adding 0.050 moles of HC2H3O2(d)adding 0.050 moles of NaOH.
The presence of reductants can enhance the thermodynamic favorability of the decomposition of nitrous oxide (N2O). Calculate deltaH
(a) In polyvinyl chloride shown in Table, which bonds have the lowest average bond enthalpy? When subjected to high pressure and heated polyvinyl chloride converts to diamond. During this transformation which bonds are most likely to break first?
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