Ethyl chloride, C2H5Cl, is used as a local anesthetic. It works by cooling tissue as it vaporizes at 12.3 °C and has a heat of vaporization of 26.4 kJ/mol. How much heat could be removed by vaporization of 60.0 g of ethyl chloride at 12.3 °C?
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The second-order decomposition of NO2 has a rate constant of…
The second-order decomposition of NO2 has a rate constant of 0.255 M-1s-1. If the initial concentration of NO2 is 1.33 M in a 1.0 L volume, how much NO2 decomposes in 8.00 s?
The energy difference between atomic chlorine and its most s…
The energy difference between atomic chlorine and its most stable ion, in the gaseous state, is referred to as _____.
What is the oxidizing agent in the reaction: 2 MnO4− + 3 C…
What is the oxidizing agent in the reaction: 2 MnO4− + 3 C2O42− + 4 OH− ⟶ 2 MnO2 + 6 CO32− + 2 H2O
Select the correct set of quantum numbers (n, l, ml, ms) for…
Select the correct set of quantum numbers (n, l, ml, ms) for the highest energy electron in the ground state of indium, In.
What is the molality of a 5.86 M ethanol (C2H5OH) solution w…
What is the molality of a 5.86 M ethanol (C2H5OH) solution whose density is 0.927 g/mL?
Identify the catalyst and intermediate, respectively, in the…
Identify the catalyst and intermediate, respectively, in the following two-step mechanism: Step 1: NO2 + Cl → NO + ClO Step 2: ClO + CO → Cl + CO2
If a reaction with an activation energy of 195.0 kJ/mol is h…
If a reaction with an activation energy of 195.0 kJ/mol is heated from 200.0 °C to 220.0 °C, the rate constant, k, for this reaction will change by a factor closest to
Which of the following has the highest melting point?
Which of the following has the highest melting point?
If 20.0 g of CaCl2 are dissolved in 1.0 kg of water at 25.0…
If 20.0 g of CaCl2 are dissolved in 1.0 kg of water at 25.0 °C, what will be the final temperature of the solution after the CaCl2 is fully dissolved? The dissolution of CaCl2 has ∆Hdissolution = −81.30 kJ/mol. Assume that the resulting solution has a heat capacity of 4.18 J/g°C.