Question

calculate the realtive mass of [NH4]2 Cr2O7

Answer 1

Answer:

252 grams

Explanation:

mass of chromium is equals to 52 grams

mass of hydrogen is equal to 1 gram

mass of Nitrogen equals to 14 grams

and mass of oxygen equal to 16 grams

we have ammonium dichromate that is

(NH4)2cr2 O7 formula for Molecular mass is equal to mass of Nitrogen into 2 + mass of hydrogen into 8 + mass of chromium into 2 + mass of oxygen into 7

14 x 2 + 1 x 8 + 52 x 2 + 16 x 7 => 28+8+104+112=252

that totals up to 252 grams

hope it helps please mark it as brainliest