How much lidocaine viscous is needed if you only prepare 100ml of mouthwash, given that the original recipe includes 50ml?

To determine how much lidocaine viscous is needed for the preparation of 100ml of mouthwash, it's important to first understand the ratio or proportion in the original recipe. The original recipe calls for 50ml of lidocaine viscous, which is a specific quantity for a specific final volume of mouthwash.

If we assume that the original recipe is designed for a total volume of 200ml of mouthwash (a common volume when an ingredient is specified as 50ml), then the proportion of lidocaine to total volume in the original recipe is 50ml of lidocaine for 200ml total volume, giving us a lidocaine concentration of 25% (50ml / 200ml).

To prepare 100ml of mouthwash while maintaining the same concentration, you need to calculate how much lidocaine is necessary. By halving the total volume from 200ml to 100ml, you need to halve the amount of lidocaine viscous accordingly. Therefore, half of 50ml equals 25ml.

It seems there has been an initial misunderstanding regarding the calculations based on assumptions or given conditions without specific clarity on the total volume the original recipe aimed for.

If indeed 50ml of lidocaine was originally intended