Number of moles of CO2 =
Mass /Ar
= 50.2 / (12 + 32)
1.14 mols
For every 1 mol of gas, there will be
24000 cm^3 of gas
Vol. = 1.14 x 24 dm^3
= 27.36 dm^3
Answer:
The boiling point is the temperature at which the vapor pressure equals the pressure of gas.
The normal boiling point is the temperature at which the vapor pressure equals one atmosphere
Explanation:
Answer:
The amount of energy liberated will be 49.38 J.
Explanation:
The amount of energy liberated (gibbs free energy) can be calculated using the following equation:
ΔG° = -nFε
n: amount of moles of electrons transfered
F: Faraday's constant
ε: cell potential
20.0 g of Zn is equal to 0.30 mol.
Two electrons are transfered during the reaction.
Therefore, n = 2x0.30 ∴ n = 0.60
ΔG° = - 0.60 x 96.485 x 0.853
ΔG° = 49.38 J
Answer:
particles in 2 moles.
Explanation:
The number of particles that are contained in one mole, the international unit of amount of substance: by definition, exactly 6.022×10²³, and it is dimensionless. It is named after the scientist Amedeo Avogadro.
It is also known as Avogadro's constant.
∴ Number of particles in one mole = 
∴ Number of particles in 2 mole = 2 times Number of particles in one mole
∴ Number of particles in 2 mole=
Hence there are particles in 2 moles.
Answer:
17.6% en masa será la nueva concentración de la solución
Explanation:
Una disolución al 30% en masa contiene 30g de soluto en 100g de solución (Solvente + soluto). Así, la masa de solvente (Agua) es:
100g - 30g = 70g
Dado que la densidad del agua es de 1g/mL, 70g de agua ocupan 70mL.
Si el volumen se duplica, habrán 140mL de agua = 140g de solvente.
Así, la masa total de la solución será 30g + 140g = 170g y el porcentaje en masa será:
30g soluto / 170g solución × 100 =
<h3>17.6% en masa será la nueva concentración de la solución</h3>
