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# I don't understand... watch

1. I did this question and I keep getting A, but the mark scheme says the answer is B.
i did 101000 x 1870/1000000 divided by 2.18/16 * 8.31

Where have i gone wrong?
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2. (Original post by tmifan)
I did this question and I keep getting A, but the mark scheme says the answer is B.
i did 101000 x 1870/1000000 divided by 2.18/16 * 8.31

Where have i gone wrong?

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3. (Original post by Fish40)

Posted from TSR Mobile
cm3 to m3 is divided by a million i think

Is it not 1870 / 1000000?
4. (Original post by tmifan)
I did this question and I keep getting A, but the mark scheme says the answer is B.
i did 101000 x 1870/1000000 divided by 2.18/16 * 8.31

Where have i gone wrong?
Isn't gaseous Oxygen likely to be molecular oxygen, meaning that a mole has a mass of 32g?
5. (Original post by astro67)
Isn't gaseous Oxygen likely to be molecular oxygen, meaning that a mole has a mass of 32g?
Ah I see! That makes sense. Whoops.

Thanks

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