In real-life chemical reactions, is it common to achieve a 100% yield?

In real-life chemical reactions, it is common to not achieve a 100% yield because some material is always lost during the process. This loss can occur for several reasons.

When conducting a reaction, some reactants may not completely convert into products due to incomplete reactions. Additionally, during transfers, such as pouring from one container to another, some product may be left behind, or there might be losses during purification steps where not all desired products can be isolated. Furthermore, side reactions can occur, producing unintended products that effectively reduce the yield of the desired substance.

Achieving a yield of 100% is theoretically possible under ideal conditions, but in practice, various factors such as reaction inefficiency, handling losses, and competing side reactions generally prevent this from happening. Thus, while perfect conditions might seem to imply a 100% yield, reality often presents various challenges that lead to material loss.