Can anyone help me how to get this? I'm soo confused
What is the mass of mercury found in 3.5 kg of an ore that is 35.0% mercury (II) sulfide?
(Answer: 1100)
Help me please T.T
What is the mass of mercury found in 3.5 kg of an ore that is 35.0% mercury (II) sulfide?
(Answer: 1100)
Help me please T.T
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3.5 kg x (1000 g / kg) = 3500 g
Mass %HgS = ((mass of HgS) / (mass of sample)) x 100
35.0 = ((mass of HgS) / (3500 g)) x 100
35.0 = mass of HgS x 0.0286
35.0 / 0.0286 = mass of HgS = 1225 g HgS
The molar mass for HgS = atomic weight for Hg + atomic weight for S = 200.59 + 32.07 = 232.66 g.
What % of the 232.66 is from Hg?
%Hg in HgS = ((molar mass Hg) / (molar mass HgS)) x 100 = ((200.59) / (232.66)) x 100 = 86.2%
1225 g H2S x (86.2 g Hg / 100 g HgS) = 1060 g Hg (or 1100 expressed in 2 sig figs).
Mass %HgS = ((mass of HgS) / (mass of sample)) x 100
35.0 = ((mass of HgS) / (3500 g)) x 100
35.0 = mass of HgS x 0.0286
35.0 / 0.0286 = mass of HgS = 1225 g HgS
The molar mass for HgS = atomic weight for Hg + atomic weight for S = 200.59 + 32.07 = 232.66 g.
What % of the 232.66 is from Hg?
%Hg in HgS = ((molar mass Hg) / (molar mass HgS)) x 100 = ((200.59) / (232.66)) x 100 = 86.2%
1225 g H2S x (86.2 g Hg / 100 g HgS) = 1060 g Hg (or 1100 expressed in 2 sig figs).