Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °

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**niharika_kumar****Member**- From: Numeraland
- Registered: 2013-02-12
- Posts: 1,062

Q.How many molecules of

are contained in 1 L of air if the volume content of is 0.03% at NTP?p.s. What is the meaning of volume content of

?friendship is tan 90°.

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Volume content reffers to the fraction of the substance contained in it by volume.

For example, 0.03% of CO_2 in one liter means 0.0003 liters of Carbon Dioxide per every liter of the air.

Hint: 1 mole of CO_2 takes up 22.4 L in stp

'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'

'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'

I'm not crazy, my mother had me tested.

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**ShivamS****Member**- Registered: 2011-02-07
- Posts: 3,648

8.06 × 10^18

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Well done, niharika

'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'

'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'

I'm not crazy, my mother had me tested.

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**ShivamS****Member**- Registered: 2011-02-07
- Posts: 3,648

I haven't gotten my name changed yet, but I am planning to in a week.

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Oh! I thought you are niharika_kumir!

'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'

'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'

I'm not crazy, my mother had me tested.

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**niharika_kumar****Member**- From: Numeraland
- Registered: 2013-02-12
- Posts: 1,062

thanks agnishom.

I got the answer.

how is your school going?

friendship is tan 90°.

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We are having a vacation.

'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'

I'm not crazy, my mother had me tested.

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**niharika_kumar****Member**- From: Numeraland
- Registered: 2013-02-12
- Posts: 1,062

good.

my school hasn't started yet.

friendship is tan 90°.

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**gourish****Member**- Registered: 2013-05-28
- Posts: 153

you guys still in school?

i thought you are in college @agnishom and niharika

*Last edited by gourish (2014-05-27 18:47:01)*

"The man was just too bored so he invented maths for fun"

-some wise guy

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**niharika_kumar****Member**- From: Numeraland
- Registered: 2013-02-12
- Posts: 1,062

yes we are in standard 11.

friendship is tan 90°.

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