Question

5.
You are told that 2.5 mol of oxygen gas has
the same mass as 1 mol of so, What is the
value of n?
A 1
C3
B 2.
D 4
​

Answer 1

Answer:

I Think That is n = 2

Explanation:

As I think it may be woung or right.

Answer 2

Answer:

The answer is C = 3.

Explanation:

First, we'll find the mass as it's the same for both.

$2.5=\frac{x}{32} (Mr.of O2 = 32)$

2.5 × 32 = 80

Now let's find the Mr of SOn.

$1=\frac{80}{y}$

$y=80$

So Mr is 80.

80 = Mr of 1 S + Mr of n O:

$80=32+n$

$48=n$

As Oxygen has Ar = 16

$\frac{48}{16} =3$

So n = 3.