A 65.00 mL solution of 0.4950 M AgNO3 was added to a solution of AsO3−4 . Ag3AsO4 precipitated and was filtered off. Fe3+ was added and the solution was titrated with 0.2150 M KSCN . After 38.00 mL of KSCN solution was added, the solution turned red. What mass of AsO3−4 was in the original solution? I know i need to find the original conc of Ag^+ and minus the original from the final to get the final mass

kuchisake

kuchisake-onna (口裂け女, "slit mouth woman ") is a malevolent figure appearing in japanese ghost stories, possibly dating back to the edo period. she takes the form of a masked woman who approaches people and asks them if they believe she is pretty.

explanation:

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.