How many grams of iron is 3.91 x 10^22 atoms of iron? (Report answer as a number rounded to one place past the decimal.)

(Picture of Periodic Table)

the answer is 1260

you spend 7 hours in school for 1 school day with 5 school days in 1 school week with 36 school weeks in a school year.

7*5*36= 1260 it's all about multiplying

answer; the numbers of valence electrons in the acetic acid molecule (ch3co2h) is 24;