Question

The following reaction occurs in the aqueous phase. What is the net ionic equation for the reaction between NaOH(aq) + HF(aq)?

	a.	H+(aq) + OH-(aq) --> H2O(l)
	b.	Na+(aq) + F-(aq) --> NaF(s)
	c.	H+(aq) + F-(aq)  + Na+(aq)  + OH-(aq)  --> H2O(l) + NaF(s)
	d.	HF(aq)  + Na+(aq) +  OH-(aq) --> H2ONaF(s)
	e.	HF(aq)  + OH-(aq) --> H2O(l) + F-(aq)

Answer 1

first write the balanced equation

NaOH (aq) + HF (aq) --> NaF (aq)   + H20 (l)

now

ionic equation should be written

to write that

all the salts , strong acids and bases in aqeous solutions will dissociate into ions

and

solids , liquids and gases, weak acids and bases remain in their initial state

so

the ionic reaction is

Na+ + OH- + HF ---> Na+ + F- + H20

now

cancel ou the common ions

we get

HF + OH- ---> H20 + F-

so

the net ionic equation is

HF (aq) + OH- (aq) ---> H20 (l) + F-

so

the answer is option E