How to balance equations?
Balancing equations is making sure that all atoms, ions and charges have the same count on both sides of the equation. We start with checking metals, hydrogen and lastly oxygen and charges. In order to balance the count we put coefficients before the give species.
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A 1000 cm3 container of ammonia (NH3) has a mass of 20.7g, it is stored at room temperature (298 K). When empty the container has a mass of 20.0 g, calculate the pressure inside the container in kPa to an appropriate number of significant figures.
The equation for the reaction between ammonia and oxygen is shown. 4NH3(g) + 5O2(g) ⇌ 4NO(g) + 6H2O(g) . Calculate the entropy change of the reaction, using data from the table below.