They are__________Mol of carbon atoms in 4 mol of Dimedthysulfoxide

A: 2
B: 6
c: 8
D: 4
E: 3
My answer is C:8 but can any one help me with the method to show the right answer.

2. There are ___________Sulfur atoms in 25 molecules of c4H4S2.
My answer is 50...Can one help me.

3. A sample of C3H8O that contain 200 molecules contains_____________carbon atoms?????????????

1 correct, 2 correct. The last try, and see if you get it.

To find the number of moles of carbon atoms in 4 mol of Dimethylsulfoxide (DMSO), we need to know the molecular formula of DMSO and the number of carbon atoms it contains.

The molecular formula of DMSO is (CH3)2SO. From the formula, we can see that there are 2 carbon atoms in one molecule of DMSO.

Since we have 4 mol of DMSO, we can multiply the number of moles by the number of carbon atoms per molecule to get the total number of carbon atoms:

4 mol DMSO * 2 carbon atoms/mol = 8 carbon atoms

Therefore, the correct answer is option C: 8.

Now, let's move on to the next question.

To find the number of sulfur atoms in 25 molecules of C4H4S2, we need to know the molecular formula of C4H4S2 and the number of sulfur atoms it contains.

From the molecular formula, we can see that there is 1 sulfur atom in one molecule of C4H4S2.

Therefore, if we have 25 molecules of C4H4S2, we simply multiply the number of molecules by the number of sulfur atoms per molecule:

25 molecules * 1 sulfur atom = 25 sulfur atoms

Therefore, the correct answer is 25.

Finally, let's tackle the last question.

To find the number of carbon atoms in 200 molecules of C3H8O, we need to know the molecular formula of C3H8O and the number of carbon atoms it contains.

From the molecular formula, we can see that there are 3 carbon atoms in one molecule of C3H8O.

Therefore, if we have 200 molecules of C3H8O, we multiply the number of molecules by the number of carbon atoms per molecule:

200 molecules * 3 carbon atoms = 600 carbon atoms

Therefore, the correct answer is 600.