How many grams of potassium bromide, KBr, are needed to make 500 mL of .600 M solution?

because u need two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei to form isotopes.

so since they all have the same shape? i mean maybe because m& m and reeses are both chocolates

the answer is 303.15 or 303

fe 55.85 g/mol and h2o 18.02 g/mol.