Question

1-)2 H2O2 (aqueous) → 2 H2O (s) + O2
It contains O2 (g) released from 10.0 mL of aqueous solution containing 3.00% H2O2 by mass, at 22 ˚C and
How many L in 752 mmHg? The density of the hydrogen peroxide solution is 1.01 g / mL.
(Atomic weights (g / mol) H: 1.008 O: 15.999 R = 0.08206 L atm / mol K)
2-)23.58 mL of 0.1278 M KOH solution is added to 25.13 mL of 0.1264 M HCl solution. Formed
is the solution acidic, basic or completely neutral? Please explain.
(Tip: Is there a limiting reaction?)
3-)
Calculate the final temperature when a 1.59 kg platinum sample gives a heat of 1.05 kcal at 78.2 ˚C.
(Specific heat of Pt = 0.032 cal g
-1 oC
-1
)
please help very urgent

Answer 1

sorry bro

I dont know

folllow me

Answer 2

                                SORRY,

I DON'T UNDERSTAND TO YOUR QUESTION!!!