N=24/12
n=2
where n= no. of moles
Answer is: molarity of solution is 0,5 mol/dm³.
m(NaOH) = 10,0 g.
V(NaOH) = 500 ml = 0,5 dm³.
c(NaOH) = ?
n(NaOH) = m(NaOH) ÷ M(NaOH).
n(NaOH) = 10,0 g ÷ 40 g/mol.
n(NaOH) = 0,25 mol.
c(NaOH) = n(NaOH) ÷ V(NaOH).
c(NaOH) = 0,25 mol ÷ 0,5 dm³.
c(NaOH) = 0,5 mol/dm³.
Hi the answer is C. I believe.
Answer:
Chlorine
Explanation:
Each arrow represents one electron. Most of the boxes are filled, meaning they have two electrons. The last box only has one arrow, so it only has one electron. If you add it up, you get 17, which is Chlorine.
Answer:
The correct answer is 4,556.2 J
Explanation:
The amount of heat is calculated with the following equation:
Heat= m x Cs x ΔT
Given:
m= 100.0 g (mass)
Cs= 4.18 J/g.ºC (specific heat)
ΔT= 10.9ºC (change in temperature)
We introduce the data in the equation and calculate the heat:
Heat = 100.0 g x 4.18 J/ºC.g x 10.9ºC = 4,556.2 J
Therefore, the amount of heat absorbed by the water (gained by the solution) is 4,556.2 J
