Molar mass KCl = 74.55 g/mol
Volume = 869 mL in liters : 869 / 1000 => 0.869 L
number of moles:
21.9 / 74.55 => 0.293 moles
M = n / V
M = 0.293 / 0.869
M = 0.337 mol/L⁻¹
hope this helps!
Answer:
The observation, identification, description, experimental investigation, and theoretical explanation of natural phenomena
Conduction as it transmits energy from solid to solid through a medium
Answer:
The activation energy of the reaction is 1.152 kJ/mol.
Explanation:
Activation energy is the minimum amount which is absorbed by the reactant molecules to undergo chemical reaction.
Initial temperature of reaction =
Final temperature of reaction =
Initial rate of the reaction at 100 k =
Final rate of the reaction at 200 k =
Activation energy is calculated from the formula:
R = Universal gas constant = 8.314 J/ K mol