Is it possible to splash large amounts of fluid when a women orgasm's?

Yes, a woman may ejaculate before or during intense stimulation which simultaneously cause orgasm. Typically this is NOT urine, although a woman who has previously given birth, or has a medical condition, could have a chance of losing control of her bladder during sex.

You should be able to tell the difference in color, scent, and the amount of liquid, as well as where the liquid is "squirting" from. Although female ejaculate may have a slight scent, it is typically in smaller "bursts" rather than one long stream and clear-colored, and comes from just inside her vagina rather than her urethra.