2. Una bebida alcohólica tiene 16o. Determinar: a) concentración de etanol en % en volumen;
b) concentración en g/L;
c) molaridad.
Densidad (etanol) = 0,8 g / mL
El grado alcohólico es el % en volumen de etanol, luego 16o = 16% en volumen de etanol. urgente

hi,

the capital city of australia is canberra.

as given the equation is

2al + 6 hcl > 2 alcl3 + 3 h2(g)

as per equation two moles of aluminum reacts with six moles of hcl to give two moles of alcl3 and three moles of hydrogen gas

given: three moles of al are present and 7 moles of hcl

for three moles of aluminum nine moles of hcl will be required

however as 7 moles of hcl are present so the limiting reagent is hcl

hcl is going to decide the number of moles of product formed

when six moles of hcl are present = 3 moles of h2 are formed

when one mole of hcl is present == 3/6 mole sof h2 will be formed

when 7 moles of hcl are present = 3 x 7/ 6 moles of h2 will be formed = 3.5 moles of h2

50.23 i believe is correct but don't quote me on that.