Relationship between volume strength of $H_2{O}_2$ aqueous solution and molarity depends on pressure and temperature of $O_2 \left(g\right)$ collected

Example:

At $1 atm, 273 K$
volume strength $=11.2\times M$

At STP, 
volume strength $=11.35\times M$

[Note: By default STP is taken for volume strength calculation].

Find the relationship between volume strength and molarity at $300 K$ and $1 atm.$