Please help with these two chemistry questions. Image attached.

The answers for the following questions is answered below.

Explanation:

1. Given:

no of molecules (n) = 6.023 ×

volume of gas at STP conditions (V) =22.4 liters

To solve:

Volume of gas (v)

We know;

1 × 22.4 = v

v =22.4 L

Therefore the volume of a gas is 22.4 L

2. Given:

volume of oxygen gas (v) = 53 L

Volume of gas at STP conditions (V) =22.4 L

To solve:

no of moles of oxygen gas

We know;

n =

n =2.37 moles

Therefore the number of moles of oxygen are 2.37 moles

while cooking a piece of 1/2 pound beef steak, a cast iron pan (2.4kg in weight) was heated 260 celsius.