Suppose you drink 90 ml of water. How many molecules of water will enter into your stomach ?
GSEB - Class 9 Chapter - 4.Properties of Matter Page 59
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Density of water = 1gm/mL
Therefore mass of 90 mL water = 90 gm
No. of molecules in 18 gm of water
= 6.022 * 10^23
Hence no. of molecules in 5 moles ( 90 gm) of water = 5 * 6.022 * 10^23 = 30.11 * 10^23
Therefore, if you drink 90 mL water, 30.11 * 10^23 molecules enter into your stomach.
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5×6×10power23 particular
that equals to 30×10power23 paticles
that equals to 30×10power23 paticles
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