Respuesta :
Answer:
If you take one part master solution and add four parts of distilled water, you now have a 20% salt water solution (1:4 ratio). Using the 'parts' method, if you merely add the two numbers of the 'parts' ratio together and then divide that into 100, it will give you the final dilution percentage.
Step-by-step explanation:
Answer:
8%
Step-by-step explanation:
the weight percentage of the salt relative to the weight of the whole saline solution =
20/(20+230) × 100% =
20/250 × 100% = 8%