Like many other organic solvents we will use this semester, ethanol is flammable and caution needs to be exercised when heating ethanol on the hot plate. What precaution should always be taken when heating solvents on the hot plate?

See explanation

Explanation:

A flammable solvent refers to a solvent that catches fire easily. The precautions to be taken when working with flammable solvents are;

1) heat the solvent at a low to medium hot plate setting.

2) if you need to boil the solvent, use a condenser rather than a flask or beaker without a cover.

3) make sure that the hotplate is larger than the vessel containing the mixture that is being heated.

4) do not use strong oxidizing agents

sry but any answer choices

answer: the value of enthalpy change will be -152.80 kj.

solution:

pressure = 1atm , temperature = = 298 k

given that pressure and temperature are same in both gases , the number of moles of both gases can be determined by the ideal gas equation.

according to reaction 3 moles no are reacting with 1 mol of ,then 0.49 mol of no will react with moles of ozone that is 0.16 moles of ozone. since, no is limiting reagent and is an excessive reagent.

enthalpy change for the reaction between the given volumes of the gases is :