How many atoms are there of 1.85 moles of Fe?

1.114 x 10∧24

Explanation: 1 mole of any substance contains 6.022 x 10∧23 atoms ( commonly called Avogadro's Number).

∴ 1.85 moles of Fe would contain; 1.85 x 6.022 x 10∧23  =  1.114 x 10∧24 atoms

the correct answer is b. a strong acid completely dissociates to its ions when dissolved in water. completely dissociates to and ions. a is incorrect because does not fully ionize to and ions and some remain as the compound . c and d are incorrect because, and do not fall into the category of bronsted lowry acids. a bronsted lowry acid is a proton donor and since both molecules do not have a proton to donate they are not bronsted lowry acids. likewise,   if we use the lewis acid definition, they cannot be acids. a lewis acid is an electron pair acceptor. both and have a complete octet so can not accept any electrons which disqualifies them as acids.