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If 39.1 g of NO and 26.9 g of O2 react together, what is the mass in grams of NO2 that can be formed via the reaction below?

The reaction is:
\[ 2 \text{NO}(g) + \text{O}_2(g) \rightarrow 2 \text{NO}_2(g) \]

Answer :

Final answer:

According to the law of conservation of mass, the maximum mass of NO2 that could be produced from the given amounts of NO and O2 is the sum of these, which is 66.0 g. Real chemical reactions often yield less than this theoretical maximum due to various factors.

Explanation:

The given question involves the law of conservation of mass, which states that mass can neither be created nor destroyed. According to this, the total mass of reactants equals the total mass of the products in a chemical reaction. Given that, the mass of NO2 produced equals the sum of the masses of NO and O2 that reacted. Here, 39.1 g of NO and 26.9 g of O2 are reacting together. Therefore, the maximum mass of NO2 that could be formed would be the sum of these, which is 66.0 g.

However, it is important to remember that real chemical reactions often yield less than this theoretical maximum amount. This is due to incomplete reactions, side reactions, and practical losses during the handling and isolation of products.

Learn more about Conservation of Mass here:

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