How many milliliter of 3.0 M phosphoric acid (H3PO4) can be made from 95mL of a 5.0M
H3PO4 solution?
160 mL
O 57 ml
18 mL
110 mL

160 ml of 3.0 M phosphoric acid (H3PO4) can be made from 95mL of a 5.0M  H3PO4 solution. In the option nearest value given is 160 ml. So first option is the right answer.

Explanation:

Data given:

Initial volume of phosphoric acid given = 95 ml

initial molarity of the solution of phosphoric acid =  5 M

final volume of phosphoric acid = ?

final molarity to be achieved = 3 M

the formula used for dilution is :

Minitial x V initial = M final x Vfinal

Vfinal =

V final =

            = 158. 33 ml

The solution having more molarity is concentrated here initial solution was concentrated it was diluted to be 3M by taking 158.33 ml of the 5M solution.

From the options nearest value is 160 ml

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.

the answer is option a.