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I would say heartburn when someone takes Calcium Carbonate to neutralize stomach acid and relieve burning.

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14y ago

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What is one reason to use Hess's law?

Hess's law allows you to calculate the enthalpy change of a reaction by using the enthalpy changes of other reactions. This is particularly useful when direct measurement of the desired reaction is not feasible.


If you need to reverse the following reaction in order for it to be an intermediate reaction in a Hess's law problem what would be the final value for the enthalpy of reaction you use for this interme?

To reverse a reaction in a Hess's law problem, you need to change the sign of the enthalpy change associated with that reaction. If the original reaction has an enthalpy of reaction ( \Delta H ), the final value for the enthalpy of the reversed reaction would be ( -\Delta H ). This allows you to correctly account for the energy change in the overall pathway when combining reactions.


Use the data to determine the heat of vaporization of nitrogen?

To determine the heat of vaporization of nitrogen, you would need the enthalpy of vaporization data for nitrogen. This value is typically around 5.57 kJ/mol at its boiling point of -195.79°C. By knowing the enthalpy of vaporization and the conditions at which nitrogen is boiling, you can calculate the heat of vaporization.


Where can Neutralization be useful?

You can use base toothpaste to brush your teeth as your teeth contain an acid which means when you are cleaning your teeth the base of the toothpaste mixes with the acid of your teeth equalling a neutralisation.


How much energy is involved in the formation of 5 grams of rust?

The energy involved in the formation of 5 grams of rust can be calculated using the enthalpy of formation of iron(III) oxide (rust), which is -824 kJ/mol. First, convert the mass of rust to moles, then use the molar enthalpy of formation to calculate the energy involved.