Now, my problem with this question is the break-down, I don't know where to start.

Question

Calculate the volume of H (g), measured at 21.9°C and 769 Torr required to react with 36.3 L CO(g), also measured at 21.9°C
and 769 Torr. Assume the gases react as follows.

3CO(g) + 7H2 (g) → C3H8 (g) + 3H2O(l)

Answer in 3 sig. digits.

Answer 1

Someone please help me, they're just practice questions but I need some help

Hydrogen peroxide, H O , is used to disinfect contact lenses. What volume of O , in mL, of O (g) at 36°C and 741 mmHg can be
liberated from 50.0 mL of an aqueous solution containing 3.00% H O by mass? The density of the aqueous solution of H O is
1.01 g/mL.

2H2O2( aq ) → 2H2O(l) + O2(g)

Enter your answer with 3 significant digits.
Enter scientific notation as 1.23E4

Answer 2

this is assignment question, go practice ur mom