Water :| water is your delicious food
Answer:
a) Q = 0.025 KJ/g
b) Q = 0.602 KJ/mol
Explanation:
ΔU = Q + W.....first law
∴ a constant volume: ΔV = 0
⇒ W = 0
⇒ ΔU = Q = CvΔT
∴ Cv = 3.024 J/°C
∴ ΔT = 1.126 °C
⇒ Q = (3.024 J/°C)×(1.126 °C ) = 3.405 J
⇒ Q = 3.405 E-3 KJ
a) Q [=] KJ/g
⇒ Q = (3.405 E-3 KJ) / (0.1375 g) = 0.025 KJ/g
b) Q [=] KJ/mol
∴ Mw Mg = 24.305 g/mol
⇒ Q = (0.025 KJ/g)×(24.305 g/mol) = 0.602 KJ/mol
"Hydrochloric acid (HCl) is an example of an acid. When it dissolves in water, it produces positive hydrogen ions and negative chloride ions (Cl-). This can be represented by the chemical equation: HCl H2O→ H+ + Cl."
Hope this helps! Sorry if it doesn't.
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Answer:
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