Achemist makes 760. ml of calcium bromide (cabr) working solution by adding distilled water to 290. ml of a 3.18 m stock
solution of calcium bromide in water.

Concentration of the working solution is 1.213 M

Using dilution equation we can calculate the concentration of the working solution

Initial concentration × Initial volume = Final concentration × final volume

In this case;

Volume of working sol = 760 mL

Initial concentration = 3.18 M

Initial volume = 290 mL

Concentration of working sol= ?

Therefore;

3.18 M × 290 mL = 760 mL × y

Concentration of working solution = (3.18 × 290)/760

                                                         = 1.213 M

Therefore: the concentration of the working solution is 1.213 M

i don,t know so just answer mine

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.