<span>1. </span>To solve this we assume
that the gas is an ideal gas. Then, we can use the ideal gas equation which is
expressed as PV = nRT. At a constant temperature and number of moles of the gas
the product of PV is equal to some constant. At another set of condition of
temperature, the constant is still the same. Calculations are as follows:
P1V1 =P2V2
V2 = P1 x V1 / P2
V2 = 203 x 40.0 / 35.0
V2 =232 L
miscible cause the clear blue liquid is a homogeneous mixture
El arsénico puede provocar cáncer en pulmón y piel, e inclusive puede causar otros tipos de cánceres. Se observa una mayor fuerza de asociación entre la exposición crónica al arsénico y los cánceres de piel,El arsénico es un elemento químico de la tabla periódica que pertenece al grupo de los metaloides, también llamados semimetales, se puede encontrar de diversas formas, aunque raramente se encuentra en estado sólido. Se conoce desde la antigüedad y se reconoce como extremadamente tóxi ve
Símbolo: As
Configuración electrónica: [Ar] 3d104s24p3
Masa atómica: 74.9216 u ± 0.00002 u
Número atómico: 33
Electrones por nivel: 2, 8, 18, 5 (imagen)
Grupo, período, bloque: 15, 4, p.
Answer:
Explanation:
H₂SO₄ is a strong acid, which means that most of it ionizes in aqueous solution.
Since it is a diprotic acid (two hydrogen ions) its ionization occurs in two steps:
- H₂SO₄ (aq) → H⁺(aq) + HSO₄⁻(aq)
- HSO₄⁻ (aq) → H⁺(aq) + SO₄²⁻(aq)
Thus, almost all H₂SO₄ has ionized and its final concentration is almost nothing.
After the first ionization, the conentrations of H⁺(aq) and HSO₄⁻ are equal but by the second ionization more H⁺ ions are produced along with SO₄⁻.
You can show it as one step dissociation, assuming 100% dissociation (given this is a strong acid):
By the stequiometry you can build this table:
H₂SO₄ (aq) → 2H⁺(aq) + SO₄²⁻(aq)
Initial A 0 0
Change - x +2x +x
Equilibrium A - x 2x x
As explained, A - x is very low, and 2x is twice x. Thus,
The rank of the concentrations from highest to lowest is:
Whichever one has a negative enthalpy value.
