Question

how many moles are there in each of the following a) 280 g of silicon b) 12.406×10²³ atoms of phosphorus c) 19.0 atoms of fluorine​

Answer 1

Step-by-step explanation:

HEY MATE .....

$a. \: 280 g ----------------280/28 = 10 mol. = 7.51 × 10 ^2 mol. \: b.$

HOPE IT HELPS YOU

HOPE IT HELPS YOU 30 THANKS + FOLLOW =INBOX