Which compound would produce an acidic aqueous solution? which compound would produce an acidic aqueous solution? rbh c2h2 ph3 cah2 hf

 Option (e) is the correct answer.

Explanation:

A compound that will dissociate in water or an aqueous solution to give hydrogen ions() is known as an acidic substance.

When RbH is dissolved in aqueous solution then it dissociates as follows.

.

is non-polar in nature. So, it will not dissociate into ions when dissolved in an aqueous solution.

will also remain neutral and does not dissociate into ions.  

when dissolved in water then it dissociates as follows.

Whereas when HF is dissolved in aqueous solution then the reaction will be as follows.

Thus, we can conclude that out of the given options HF is the compound which will produce an acidic aqueous solution.

120,630,890

step-by-step explanation:

110+10=120,620+10=630,880+10=890

1. for the first question, we must find the mass of the anhydrous salt, mgso₄. the molar mass for mgso₄·7h₂o is 246.47 g/mol, while that of mgso₄ is 120.37 g/mol.7.834 g mgso₄·7h₂o * 1 mol mgso₄·7h₂o/246.47 g * 1 mol mgso₄/1 mol mgso₄·7h₂o * 20.37 g mgso₄/mol = 0.647 g mgso₄

2. mass of water = mass of sample - mass of anhydrous salemass of water = 7.834 - 0.647 = 7.19 gpercent water in hydrate = 7.19/7.834 * 100 = 91.74%