Calculate the number of moles of H 2 in a sample containing 3-011 - 103 H 2 molecules-A- 5 - 10-21B- 2 - 1020- 5 - 1021D- 2 - 10-20

The correct option is A 5×10^ 21Number of moles = Number of molecules/Avogadro number =3.011× 10^3molecules/6.022×10^23molecules/mol = 5×10^ 21 moles ...

Calculate the...

Question

Calculate the number of moles of $H_{2}$ in a sample containing $3.011 \times 10^{3} H_{2}$ molecules.

5 \times 10^{21}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

5 \times 10^{- 21}

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

2 \times 10^{20}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

2 \times 10^{- 20}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A $5 \times 10^{- 21}$
$N u m b e r o f m o l e s = \frac{N u m b e r o f m o l e c u l e s}{A v o g a d r o n u m b e r}$
$= \frac{3.011 \times 10^{3} m o l e c u l e s}{6.022 \times 10^{23} m o l e c u l e s / m o l}$
$= 5 \times 10^{- 21} m o l e s$

Suggest Corrections

Similar questions

Calculate the number of moles of $H_{2}$ in a sample containing $3.011 \times 10^{3} H_{2}$ molecules.

Q. Calculate the number of

N O_{2}

molecules in 4 moles of a pure sample of

N O_{2}

molecules.

Calculate the number of moles of $C O_{2}$ presents in a sample containing $1.2044 \times 10^{24}$ molecules of $C O_{2}$ .

Q. Find the number of moles of

N O_{2}

molecules in a sample containing

3.011 \times 10^{23}

molecules of

N O_{2}

Q. Find the number of moles of

N O_{2}

molecules in a sample containing

3.011 \times 10^{23}

molecules of

N O_{2}

Calculate the number of moles of H2 in a sample containing 3.011×103 H2 molecules.

The correct option is A 5×10−21Number of moles=Number of moleculesAvogadro number =3.011×103molecules6.022×1023molecules/mol =5×10−21 moles

Calculate the number of moles of $H_{2}$ in a sample containing $3.011 \times 10^{3} H_{2}$ molecules.

The correct option is A $5 \times 10^{- 21}$
$N u m b e r o f m o l e s = \frac{N u m b e r o f m o l e c u l e s}{A v o g a d r o n u m b e r}$
$= \frac{3.011 \times 10^{3} m o l e c u l e s}{6.022 \times 10^{23} m o l e c u l e s / m o l}$
$= 5 \times 10^{- 21} m o l e s$