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Gay Lussac's Law, Avagadro's Law

35 mL sample ...

Question

$35$ mL sample of hydrogen peroxide gives off $500$ mL of $O_{2}$ at $27^{\circ} C$ and 1 atm pressure. Determine the volume strength of $H_{2} O_{2}$ sample.

A

26 V

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B

9 V

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C

3 V

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D

13 V

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Solution

The correct option is D 13 V

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Similar questions

35 m L

sample of hydrogen peroxide gives of

500 m L

O_{2}

27^{\circ} C

1 a t m

pressure. Volume strength of

H_{2} O_{2}

50

ml of a certain sample of

H_{2} O_{2}

1200

O_{2}

at STP. The volume strength of

H_{2} O_{2}

20

mL of a solution containing

0.2

g of an impure sample of

H_{2} O_{2}

0.316

K M n O_{4}

(acidic medium). Calculate the volume of dry

O_{2}

27^{\circ} C

750

mm of pressure (in mL as nearest integer).

H_{2} O_{2} + 2 K I 40 % y i e l d - ---- \to I_{2} + 2 K O H

H_{2} O_{2} + 2 K M n O_{4} + 3 H_{2} S O_{4} 50 % y i e l d - ---- \to K_{2} S O_{4} + 2 M n S O_{4} + 3 O_{2} + 4 H_{2} O

150 m L

H_{2} O_{2}

sample was divided into two parts. First part was treated with

K I

K O H

200 m L

\frac{M}{2} H_{2} S O_{4}

for neutralization. Other part was treated with

K M n O_{4}

for neutralization yielding

6.74 L

O_{2}

1 a t m

273 K

%

yield indicated, find volume strength of

H_{2} O_{2}

Q. A sample of a gas occupies

600 m L

27^{\circ} C

1 a t m

. What will be the volume at

127^{\circ} C

if the pressure is kept constant?

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