<span>The answer is tropical rainforest. The congo river basis is a mosaic of rivers, forests, savannas, swamps and flooded forests.</span>
Based on experiment 1:
Mass of Hg = 1.00 g
Mass of sulfide = 1.16 g
Mass of sulfur = 1.16 - 1.00 = 0.16 g
# moles of Hg = 1 g/200 gmol-1 = 0.005 moles
# moles of S = 0.16/32 gmol-1 = 0.005 moles
The Hg:S ratio is 1:1, hence the sulfide is HgS
Based on experiment 2:
Mass of Hg taken = 1.56 g
# moles of Hg = 1.56/200 = 0.0078
Mass of S taken = 1.02 g
# moles of S = 1.02/32 = 0.0319
Hence the limiting reagent is Hg
# moles of Hg reacted = # moles of HgS formed = 0.0078 moles
Molar mass of HgS = 232 g/mol
Therefore, mass of HgS formed = 0.0078 * 232 = 1.809 g = 1.81 g
Answer:
0.5
L solution
⋅
required molarity
2.5 moles NaCl
1
L solution
=
1.25 moles NaCl
Now, to convert this to grams of sodium chloride, you must use the mass of
1
mole of this compound as a conversion factor. The mass of
1
mole of sodium chloride is given by its molar mass
1.25
moles NaCl
⋅
58.44 g
1
mole NaCl
=
73 g
−−−−
Explanation: if this is wrong i am very sorry
Can I know which grade are uh, according to the grade only visible to check
The answer is d. natural gas. All the other choices are alternative sources of energy, and do not produce or emit any greenhouse gas such as carbon dioxide (CO2). Natural gas, on the other hand, is an organic substance containing a significant amount of carbon, that when burned for fuel, results in the emission of CO2.
