Ideal gas law
Explanation:
The ideal gas law relates the temperature, pressure, volume and the number of moles of a gas under perfect conditions.
The ideal gas law is a combination of:
Boyle's law- "the volume of a fixed mass of gas varies inversely as the pressure changes if the temperature is constant"
Charles's law - "the volume of a fixed mass of a gas varies directly as its absolute temperature if the pressure is constant"
Avogadro's law - "equal volumes of all gases at the same temperature and pressure contains equal number of molecules".
The law gives:
PV = nRT
where:
P is the pressure of the gas
V is the volume of gas
n is the number of moles
T is the temperature
R is the gas constant
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Ideal gas law problems brainly.com/question/13064292
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Answer:
Volume of solution = 80.5 mL
Explanation:
Given data:
Molarity of solution = 4.50 mol/L
Mass of ethanol = 16.7 g
Volume of solution = ?
Solution:
Volume will be calculated from molarity formula.
Molarity = number of moles / volume in L
Number of moles:
Number of moles = mass/molar mass
Number of moles = 16.7 g/ 46.07 g/mol
Number of moles = 0.3625 mol
Volume of solution:
Molarity = number of moles / volume in L
4.50 mol/L = 0.3625 mol / volume in L
Volume in L = 0.3625 mol /4.50 mol/L
Volume in L = 0.0805 L
Volume in mL:
0.0805 L ×1000 mL/1 L
80.5 mL
Answer: option c. the mixing of solute and solvent molecules
Explanation:
Answer:
The balanced equations for those dissociations are:
Ba(OH)₂(aq) → Ba²⁺(aq) + 2OH⁻ (aq)
H₂SO₄ (aq) → 2H⁺(aq) + SO₄⁻²(aq)
Explanation:
As a strong base, the barium hidroxide gives OH⁻ to the solution
As a strong acid, the sulfuric acid gives H⁺ to the solution
Ba(OH)₂, is a strong base so the dissociation is complete.
H₂SO₄ is considerd a strong acid, but only the first deprotonation is strong.
The second proton that is released, has a weak dissociation.
H₂SO₄ (aq) → H⁺(aq) + HSO₄⁻(aq)
HSO₄⁻(aq) ⇄ H⁺ (aq) + SO₄⁻² (aq) Ka
