which of the following solutions would contain the highest concentration of sodium ions?

A) 0.10M sodium chloride
B) 0.20M sodium carbonate
C) 0.10M sodium sulfate
D) 0.10M sodium phosphate
E) 0.20M sodium bromid

Question

which of the following solutions would contain the highest concentration of sodium ions?

A) 0.10M sodium chloride
B) 0.20M sodium carbonate
C) 0.10M sodium sulfate
D) 0.10M sodium phosphate
E) 0.20M sodium bromid

anonymous · Answer

i guess B)

xishem · Answer

First, you need to convert these concentrations into moles of each compound. You can do this using this equation...$$c_i=\frac{n_i}{V_{sol'n}}$$Try this first.

anonymous · Answer

whats your reason for picking over E. they both have the same 0.20

xishem · Answer

ci is the concentration of the species
ni is the number of moles of the species
V is the volume of the solution. Assume 1L.

anonymous · Answer

Bis Na2CO3 it has 2 Na atoms in one molecule hence its concentration would be highest.

anonymous · Answer

well i think we have to decide it with normality isntd??

anonymous · Answer

max. normality is of B

anonymous · Answer

and as far i do we have to mulitply its concn by charge to get normality
dats mine reason to pick B