What’s the mass of 2.4 moles of calcium sulfate?
Why can't you look on the periodic table and ad up Ca + S + 4*O? If you don't have a periodic table you can look in your text. or your notes. or on the web.
Whats the answer?
To determine the mass of 2.4 moles of calcium sulfate, you need to know the molar mass of calcium sulfate and then multiply it by the number of moles.
The molar mass of calcium sulfate (CaSO4) can be calculated by adding up the atomic masses of calcium (Ca), sulfur (S), and four oxygen atoms (O).
- The atomic mass of calcium (Ca) is 40.08 g/mol.
- The atomic mass of sulfur (S) is 32.07 g/mol.
- The atomic mass of oxygen (O) is 16.00 g/mol.
Adding up these atomic masses gives you the molar mass of calcium sulfate:
Molar mass of CaSO4 = (40.08 g/mol) + (32.07 g/mol) + (4 * 16.00 g/mol)
= 136.14 g/mol
Now, you can calculate the mass of 2.4 moles of calcium sulfate by multiplying the molar mass by the number of moles:
Mass = number of moles * molar mass
Mass = 2.4 moles * 136.14 g/mol
Mass = 326.74 g
Therefore, the mass of 2.4 moles of calcium sulfate is 326.74 grams.