When the concentration is expressed in 14 percent volume, it means that there are 14 units of volume of solute per 100 units of volume of solution. Since there is a total volume of solution of 0.750 L, the solution is as follows:
0.750 L * 1,000 mL/1 L * 100 mL/ 14 mL = 5,357.14 mL pure alcohol
Answer:
Elements are all the subtances on the periodic table. Compound are elements that are fused by chemical means like potassium chloride. Mixture are elements that are not chemically fused but just in a sense mixed together.
I think its answer A. (hope its right)
Answer : As given in the question the concentration of acid and base are in equimolar proportion so,
the simple net ionic reaction that the system is undergoing can be given as,
we can now calculate the total number of moles reacting in the species as,
(30 mL) X (1L/1000ML) X 0.150 moles =
moles.
Now, we know the specific heat of water as 4.186 J/g °C.
Now considering the total volume of the product as 60 mL or 60 g (as it is water it can be g or mL) hence, ΔC is 2.5 C.
Now converting these into joules = 4.186 J/g °C X 2.5 X 60 = 627.9 Joules.
On dividing this we get 627.9 Joules /
moles = 140 KiloJoules/mole.
So the answer is 140 KJ/M.