Mercury sulfide
Chemical Compound
Mercury sulfide, mercuric sulfide, mercury sulphide, or mercury sulfide is a chemical compound composed of the chemical elements mercury and sulfur. It is represented by the chemical formula HgS.
"******It is virtually insoluble in water.*****"
Wikipedia
Formula: HgS
Molar mass: 232.66 g/mol
Density: 8.10 g/cm³
Melting point: 1,076°F (580°C)
Suppose that 2.00mL of 0.02 mol/L aqueous sodium sulphide, Na2S is used to test a 60.0mL sample of water containing 0.0004 mol/L mecury (II) nitrate Hg(NO3)2, ions.
a. Write the balanced equation
Hg(NO3)2 + Na2S = HgS + 2NaNO3
b. Determine the limiting reactant
Na2S = 2.00mL/1000mL x 0.02mol/L
= 0.00004 mol
Hg(NO3)2 = 60.0mL/1000mL x 0.0004mol
= 0.000024 mol
the limiting reactant is the mercury nitrate.
c. calculate the maximum mass of precipitate formed.
what is the precipitate?
Very confused with this question
1 answer