The mass of a molecule of water is

Important Questions on Some Basic Concepts of Chemistry

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Chemistry Crash Course MHT-CET>Chapter 1 - Some Basic Concepts of Chemistry>Exercise 1>Q 29

One __________ is the collection of $6.022 \mathrm{u} {10}^{23}$ atoms /molecules/ions. 

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Chemistry Crash Course MHT-CET>Chapter 1 - Some Basic Concepts of Chemistry>Exercise 1>Q 30

One mole of ${\mathrm{H}}_2\mathrm{O}$ corresponds to ________

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Chemistry Crash Course MHT-CET>Chapter 1 - Some Basic Concepts of Chemistry>Exercise 1>Q 31

$1 \mathrm{g}$ atom of nitrogen represents ___________.

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Chemistry Crash Course MHT-CET>Chapter 1 - Some Basic Concepts of Chemistry>Exercise 1>Q 32

 How many moles of electrons weigh one kilogram? 

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Chemistry Crash Course MHT-CET>Chapter 1 - Some Basic Concepts of Chemistry>Exercise 1>Q 33

Which of the following has the maximum number of atoms?

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Chemistry Crash Course MHT-CET>Chapter 1 - Some Basic Concepts of Chemistry>Exercise 1>Q 34

The number of sulphur atoms present in $0.2$ moles of ${\mathrm{S}}_8$ molecule is _________________________.

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Chemistry Crash Course MHT-CET>Chapter 1 - Some Basic Concepts of Chemistry>Exercise 1>Q 35

The ratio of masses of oxygen and nitrogen in a particular gaseous mixture is $1:4$. The ratio of their number of molecules is

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Chemistry Crash Course MHT-CET>Chapter 1 - Some Basic Concepts of Chemistry>Exercise 1>Q 36

The weight of $112 \mathrm{mL}$ of oxygen at $\mathrm{NTP}$ on liquefaction would be