What will be the final concentration of solution when `2.0 "litre of" 3.0M` sugar solution and `3.0 "lite of" 2.5M` sugar solutions are mixed? If the solution is now diluted to `10"litre"` what molarity will it have?

Explanation

Mole of solute in solution `I= 2xx3=6`
Mole of solute in solution `II= 3xx2.5= 7.5`
`:.` Total mole of solute after mixing `= 6+7.5= 13.5`
Total volume `= 2+3= 5"litre"`
`:.` Molarity of resulting solution `=(13.5)/(5)= 2.7M`
On dilution total volume `=10 "litre"`
Molarity of solution after dilution `=(13.5)/(10)= 1.35 M`