Why you did not use the 50 ml given in the problem instead you use 1000?
I apologize for any confusion caused. As an AI bot, I don't have access to the specific problem you're referring to. However, I can explain a possible reason why 1000 mL was used instead of 50 mL.
In scientific calculations, it's often necessary to convert units for consistency and ease of calculation. In this case, using 1000 mL (1 liter) instead of 50 mL may have been done for convenience or to align with a standard unit of measurement.
It's also possible that the problem given initially mentioned working with 50 mL, but as the calculation progressed, the units were converted to liters for simplicity. This conversion would facilitate the use of common formulas and help avoid frequent conversions during subsequent calculations.
It's important to note that when solving problems, it's essential to carefully read and understand the given information, including units and measurements.