1. convert 8.43 x 1025 atoms of Fe to moles
2. convert 4.75 x 1024 molecules CO to moles
3. convert 2.43 x 1020 atoms Al to moles

The number of moles of Fe are, 139.9 moles.

The number of moles of CO are, 7.89 moles.

The number of moles of Al are, moles.

Explanation :

As we know that 1 mole of substance contains atoms or molecules.

Part 1:

As, atoms of Fe present in 1 mole

So, atoms of Fe present in mole

Thus, the number of moles of Fe are, 139.9 moles.

Part 2:

As, molecules of CO present in 1 mole

So, molecules of CO present in mole

Thus, the number of moles of CO are, 7.89 moles.

Part 3:

As, atoms of Al present in 1 mole

So, atoms of Al present in mole

Thus, the number of moles of Al are, moles.

he uptake of drugs from the intestine is often strongly influenced by diffusion. for example, consider a water-insoluble steroid for treating inflammation that is solubilized in aggregates of detergent molecules, called micelles. these micelles, aggregates of 80 soap molecules, have a molecular weight of 24,000, a diameter of 2.6 nm, and a charge of -27. the positively charge ions (counterions) in this system are na".

a). in this case, dh> 0 and sd> 0. if t becomes larger, the term "-tds" will become more negative. at some point, it is possible that -dts will be more negative than the dh is positive, and the reaction will become spontaneous. this is probably the correct answer, but you should look at all of the other possibilities and make sure of that.