Answer:
Cu(NO₃)₂ + 2NaOH → Cu(OH)₂ + 2NaNO₃
Explanation:
This is the reaction:
Cu(NO₃)₂ + 2NaOH → Cu(OH)₂ + 2NaNO₃
Let's verify the ions charges
Cu(NO₃)₂ → Cu²⁺ + 2NO₃⁻
NaOH → Na⁺ + OH⁻
Cu(OH)₂ → Cu²⁺ + 2OH⁻
NaNO₃ → Na⁺ + NO₃⁻
The new pressure changed relative to the original by a factor of 8/3.
<h3>What is the change in the pressure?</h3>
Using the ideal gas equation;
PV = nRT
P = pressure
V = volume
n = number of moles
R = gas constant
T = temperature
P1 = nRT/V
P2 = 4n * R * 2T/3V
Hence;
P2/P1 = 4n * R * 2T/3V ÷ nRT/V
P2/P1 = 4n * R * 2T/3V * V/nRT
P2/P1 =4 * 2/3
= 8/3
Learn more about ideal gas law:brainly.com/question/13821925
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Answer:
Molarity = 0.79 M
Explanation:
Given data:
Mass of KNO₂ = 67 g
Volume of solution = 1 L
Molarity of solution = ?
Solution:
First of all we will calculate the number of moles.
<em>Number of moles = mass/ molar mass</em>
Number of moles = 67 g / 85.10379 g/mol
Number of moles = 0.79 mol
Molarity:
Molarity = number of moles / volume in L
Molarity = 0.79 mol/1 L
Molarity = 0.79 M
Answer:
la constante d'équilibre changerait
Explanation:
Earth, Air, Water, and Fire