A) Al4C3 moles in 100g=100g/144gmol¹-
Molar mass of Al4C3=144gmol¹-
one mole of Al4C3 reacts with 12 moles of water
required H2O moles=100/144*12=8.33mol
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Answer:
Ka = 1.5 × 10⁻⁵
Explanation:
Butyric acid is a weak acid that ionizes according to the following equation:
CH₃-CH₂-CH₂-COOH(aq) ⇄ CH₃-CH₂-CH₂-COO⁻(aq) + H⁺(aq)
We can find the value of the acid dissociation constant (Ka) using the following expression:
where
[H⁺] is the molar concentration of H⁺
Ca is the initial molar concentration of the acid
We can find [H⁺] from the pH.
pH = -log [H⁺]
[H⁺] = antilog -pH = antilog -2.71 = 1.95 × 10⁻³ M
Then,
Answer:
this option is correct the amount of heat required to turn a mole of a solid into a liquid
Answer:
True
Explanation:because of the motion
Transport materials. They are transferred through the blood.