In the laboratory you are asked to make a 0.114 m ammonium sulfide solution using 255 grams of water. How many grams of ammonium sulfide should you add? grams.

The mass of (NH₄)₂S we may add to the solution is: 1.98 g

Explanation:

We interpret the given data:

0.114 m → moles of solute in 1kg of solvent

255 g → the mass of solvent

As we have 0.114 moles of solute ((NH₄)₂S) in 1kg, we must determine the moles in our mass of solvent (255 g H₂O)

We convert the mass of solvent to kg → 255 g . 1 kg/1000g = 0.255 kg

Now we can determine the moles of solute, we used:

0.114 mol/kg . 0.255 kg = 0.02907 moles

If we convert the moles to mass → 0.02907 mol . 68.1g /1mol = 1.98 g

the positions which points up in upward carbon and down in downward carbon are axial

and vice versa holds true for equatorial positions

so the correct answer with labelled diagram will be

c-14 is carbon-14, or radiocarbon.   it is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons.