Chemistry, asked by smartgirlricky, 1 year ago

the mass of 1 molecule of water(H2O) is.....? i want the whole calculation in detail pls.

Answers

Answered by souvik34

A mole is a convenient counting unit whenever one is dealing with numbers of atoms or molecules. It is equal to Avogadro's number (NA), namely 6.022 x1023. If we have one mole of water, then we know that it will have a mass of 2 grams (for 2 moles of H atoms) + 16 grams (for one mole O atom) = 18 grams. Hope it's helpful. plz mark as the brainleast answer..

smartgirlricky: so i didnt get it...

smartgirlricky: 3×10^-23 gm

zaid42: ohh

smartgirlricky: can u pls explain me how it came

smartgirlricky: ????

zaid42: the question will be 1 mole of h2o

smartgirlricky: may be... but here it is printed that it is mass of 1 molecule of h2o

zaid42: ok

smartgirlricky: it can be a printing mistake

smartgirlricky: i dont know

Answered by zaid42

the molecular mass of h2o is:
1×2+16=18.
the mass of hydrogen is 1 and oxygen is 16.
1 molecule of water=18/6.022×10^23
=2.99×10^-23

zaid42: is it match with your answer

zaid42: say?

smartgirlricky: yes

zaid42: ok then

smartgirlricky: the approx value is 3 × 10^-23

smartgirlricky: thank u

zaid42: i have forget it

zaid42: ur welcome

zaid42: thanks for selecting as brainliest

smartgirlricky: welcome

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