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: 1,056

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'

'But our love is like the wind. I can't see it but I can feel it.' -A Walk to remember

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**ShivamS****Member**- Registered: 2011-02-07
- Posts: 3,646

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'

'But our love is like the wind. I can't see it but I can feel it.' -A Walk to remember

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**ShivamS****Member**- Registered: 2011-02-07
- Posts: 3,646

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'

'But our love is like the wind. I can't see it but I can feel it.' -A Walk to remember

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**niharika_kumar****Member**- From: Numeraland
- Registered: 2013-02-12
- Posts: 1,056

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'

'But our love is like the wind. I can't see it but I can feel it.' -A Walk to remember

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**niharika_kumar****Member**- From: Numeraland
- Registered: 2013-02-12
- Posts: 1,056

good.

my school hasn't started yet.

friendship is tan 90°.

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**gourish****Member**- Registered: 2013-05-28
- Posts: 145

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: 1,056

yes we are in standard 11.

friendship is tan 90°.

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