Alum used in cooking is potassium aluminum sulfate hydrate, KAl(SO4)2. XH2O. To find the value of X, you can heat the sample of
the compound. Assume you heat 4.74 g of the hydrated compound and that sample loses 2.16 g of water. What is the value of X?
1 answer:
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The molarity of the solution is 1.69M.
<h3><u>Explanation:</u></h3>The reaction between the two reactants are:
CuNO₃+ NaI = CuI +NaNO₃.
So, 1 mole of CuNO₃ or copper nitrate produces 1 mole of CuI or Copper iodide.
Molecular weight of copper iodide = = 190.4.
So, moles of copper iodide produced here is == 0.08.
So, moles of copper nitrate that was present in the solution = 0.08.
Amount of solution used = 50ml.
So, in 50ml or solution, moles of copper nitrate present = 0.08 moles.
So, in 1 liter of solution, moles of copper nitrate present = 1.69 moles.
So, the molarity of the solution is 1.69M.