GOB Chemistry
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The Pb2+ ion can be precipitated using the Cl– ion. Calculate the volume (in mL) of 0.11 M HCl solution required to react with 40.0 mL of 0.26 M Pb(NO3)2. Determine the mass (in grams) of PbCl2 formed.
Lead (ll) nitrate and ammonium iodide react to form lead(lI) iodide and ammonium nitrate according to the following reaction:
Pb(NO3)2 (aq) + 2 NH4I (aq) → PbI2 (s) + 2 NH4NO3 (aq)
How many mL of a 0.178 M ammonium iodide solution is required to react with 232 mL of a 0.355 M Lead (ll) nitrate solution? And how many moles of lead(lI) iodide are formed from this reaction?
A solution of acetic acid dissolved in water is vinegar. If 3.42 g sample of vinegar was neutralized by 23.6 mL of 0.103 M NaOH, what is the percent by weight of acetic acid in the vinegar?
In the following redox reaction, dichromate ion, Cr2O7 2–, oxidizes Fe2+ to yield the following products:
Cr2O7 2–(aq) + 6 Fe2+(aq) + 14 H+(aq) → 2 Cr3+(aq) + 6 Fe3+(aq) + 7 H2O(l)
What is the molar concentration of Cr2O72– if it takes 45.0 mL of 0.355 M FeCl2 to titrate 125.0 mL of a solution containing Cr2O72–?
What mass of KCl is required In order to precipitate the silver ions from 30.0 mL of 0.350 M AgNO3 solution?