Question

**Plz help with this asap who ever replies first with the right answer will get brainlists

What is the approximate volume of 280 g of chlorine gas (Cl2) at STP?

A. 22L
B. 7.9 L
C. 180 L
D. 88 L

How many atoms are there in 3.3 moles of strontium?

A. 2.00 x 10^24 atoms
B. 1.11 x 10^11 atoms
C. 4.24 x 10^23 atoms
D. 3.21 x 10^32 atoms

Answer 1

Answer:first D. 88L

Second A 2*10^24

Explanation:

At stp 1 mole = 22.4L

mw Cl2= 70.9

280 g =280/70.9 moles, about 4

4*22.4 = about 88

aw Sr 87.6 —> 6.02214076*10^23 atoms = 1 mole