Question

How many oxygen atoms are present in 111 g of quick lime?
1) 11.93 * 10^23
2) 9.31 * 10^24
3) 111.9 * 10^21
4) 1.15 * 10^25

Answer 1

$\mathbb{\huge{\pink{ANSWER}}}$

_____________________⭐️⭐️⭐️⭐️⭐️

➡️ATOMIC MASS OF Ca=40 u

➡️ATOMIC MASS OF O=16 u

⏩TOTAL ATOMIC MASS =40+16=56

1 MOLE =111/56

1.98

TOTAL MASS=6.022*10 to the power 23*1.98

119239.56*10 to the power 23

THE CORRECT ANSWER IS

✔️✔️✔️✔️✔️

OPTION A.

$\mathbb{\huge{\blue{HOPE.IT.HELPS}}}$