Given 12 g of aluminum, how many moles do you have?

Explanation:

Atomic mass of is given as , where is the unified atomic mass unit.

is defined as th the mass of a neutral carbon-12 atom. This is equal to the mass of . Therefore:-

Mole constant= atoms of any element.

For of 12g:-

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.