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Predict whether a precipitation reaction will occur when aqueous solutions of the following substances are mixed:
a) MnCl2 + Na2S
b) HNO3 + CuSO4
c) Hg(NO3)2 + Na3PO4
d) Ba(NO3)2 + KOH
What alcohol would be most easily dehydrated. One that is on a long chain or a short chain
Each of the insoluble salts below are put into 0.10 M hydrobromic acid solution. Do you expect their solubility to be more, less, or about the same as in a pure water solution
Low-melting solids often "oil out" of a recrystallization solution rather than crystallizing. If this were to happen, how would you change the recrystallization procedure to ensure good crystals
In the first step of the synthesis of PABA, why was it necessary to add sodium acetate to have reaction of p-toluidine with acetic anhydride?
Sodium sulfate dissolves as follows: Na2SO4(s) → 2Na+(aq) + SO42- (aq). How many moles of Na2SO4 are required to make 1.0 L of solution in which the Na concentration is 0.10 M?
you have a solution of sodium nitrate containing 140 g at 65 degrees celcius. how many additional grams of solute must
calculate the minimum concentration of cr3 that must be added to 0.095 m naf in order to initiate a precipitate of
You heat the gas until the root mean square speed of the molecules of the sample has been doubled. What will be the final pressure of the gas
acetylene (C2H2) torches are used in welding. How much heat in kJ evolves when 5.0g of C2H2 (d=1.0967kg/m^3) is mixed with a stoichiometric amount of oxygen gas?
Electrons appear on the right side of a reduction half reaction. A reductant is an reducing agent, which becomes oxidized during the course of a redox reaction.
How many moles of potassium carbonate will be produced if 400.0 g of potassium hydrogen carbonate are heated?
Describe and explain how each of the following experimental errors or variations might affect your results. a) you failed to dry the reaction flask after washing it with water.
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