Calculate the number of particles in 3.5 mol of lead, Pb. [ N A : 6 × 1 0 23 m o l − 1 ] \left[N_A:\ 6\times10^{23\ \ }mol^{-1}\right] [ N A : 6 × 1 0 2 3 m o l − 1 ]

2.1 × 1 0 24 a t o m s 2.1\times10^{24}\ atoms 2 . 1 × 1 0 2 4 a t o m s

3.5 × 1 0 23 a t o m s 3.5\times10^{23\ }atoms 3 . 5 × 1 0 2 3 a t o m s

3.5 × 1 0 23 i o n s 3.5\times10^{23\ }ions 3 . 5 × 1 0 2 3 i o n s

2.1 × 1 0 24 i o n s 2.1\times10^{24}\ ions 2 . 1 × 1 0 2 4 i o n s

Calculate the number of particles in 0.5 mol of lead(II) ions, P b 2 + Pb^{2+} P b 2 + . [ N A : 6 × 1 0 23 m o l − 1 ] \left[N_A:\ 6\times10^{23\ \ }mol^{-1}\right] [ N A : 6 × 1 0 2 3 m o l − 1 ]

3 × 1 0 23 i o n s 3\times10^{23}\ ions 3 × 1 0 2 3 i o n s

0.5 × 1 0 23 a t o m s 0.5\times10^{23\ }atoms 0 . 5 × 1 0 2 3 a t o m s

3 × 1 0 23 a t o m s 3\times10^{23}\ atoms 3 × 1 0 2 3 a t o m s

0.5 × 1 0 23 i o n s 0.5\times10^{23\ }ions 0 . 5 × 1 0 2 3 i o n s

Calculate the number of atoms in 2 mol of ammonia, N H 3 NH_3 N H 3 . [ N A : 6 × 1 0 23 m o l − 1 ] \left[N_A:\ 6\times10^{23\ \ }mol^{-1}\right] [ N A : 6 × 1 0 2 3 m o l − 1 ]

4.8 × 1 0 24 a t o m s 4.8\times10^{24\ }atoms 4 . 8 × 1 0 2 4 a t o m s

48 × 1 0 23 a t o m s 48\times10^{23\ }atoms 4 8 × 1 0 2 3 a t o m s

12 × 1 0 23 a t o m s 12\times10^{23}\ atoms 1 2 × 1 0 2 3 a t o m s

1.2 × 1 0 24 a t o m s 1.2\times10^{24}\ atoms 1 . 2 × 1 0 2 4 a t o m s

Calculate the number of atoms in 1 mol of aluminium, Al [ N A : 6 × 1 0 23 m o l − 1 ] \left[N_A:\ 6\times10^{23\ \ }mol^{-1}\right] [ N A : 6 × 1 0 2 3 m o l − 1 ]

6 × 1 0 23 a t o m s 6\times10^{23\ }atoms 6 × 1 0 2 3 a t o m s

12 × 1 0 23 a t o m s 12\times10^{23}\ atoms 1 2 × 1 0 2 3 a t o m s

6 × 1 0 24 a t o m s 6\times10^{24\ }atoms 6 × 1 0 2 4 a t o m s

1.2 × 1 0 24 a t o m s 1.2\times10^{24}\ atoms 1 . 2 × 1 0 2 4 a t o m s

Calculate the number of particles in 372.6 g lead, Pb. [ R A M : P b = 207 ; N A = 6 × 1 0 23 m o l − 1 ] \left[RAM:Pb=207;\ N_A=6\times10^{23}mol^{-1}\right] [ R A M : P b = 2 0 7 ; N A = 6 × 1 0 2 3 m o l − 1 ]

1.08 × 1 0 24 a t o m s 1.08\times10^{24\ }atoms 1 . 0 8 × 1 0 2 4 a t o m s

1.8 × 1 0 24 a t o m s 1.8\times10^{24\ }atoms 1 . 8 × 1 0 2 4 a t o m s

18 × 1 0 23 a t o m s 18\times10^{23\ }atoms 1 8 × 1 0 2 3 a t o m s

1.8 × 1 0 23 a t o m s 1.8\times10^{23\ }atoms 1 . 8 × 1 0 2 3 a t o m s

Calculate the mass in 1.56 × 1 0 23 a t o m s 1.56\times10^{23}atoms 1 . 5 6 × 1 0 2 3 a t o m s of silver, Ag [ R A M : A g = 109 ; N A = 6 × 1 0 23 m o l − 1 ] \left[RAM:Ag=109;\ N_A=6\times10^{23}mol^{-1}\right] [ R A M : A g = 1 0 9 ; N A = 6 × 1 0 2 3 m o l − 1 ]

0.26 m o l 0.26\ mol 0 . 2 6 m o l

28.08 m o l 28.08\ mol 2 8 . 0 8 m o l

Calculate the mass in 1.2 × 1 0 22 m o l e c u l e s 1.2\times10^{22}\ molecules 1 . 2 × 1 0 2 2 m o l e c u l e s of nitrogen dioxide, N O 2 NO_2 N O 2 . [ R A M : N = 14 ; O = 16 ; N A = 6 × 1 0 23 m o l − 1 ] \left[RAM:N=14;\ O=16;\ N_A=6\times10^{23}mol^{-1}\right] [ R A M : N = 1 4 ; O = 1 6 ; N A = 6 × 1 0 2 3 m o l − 1 ]

0.92 m o l 0.92\ mol 0 . 9 2 m o l

Calculate the number of atoms in 1.2g of magnesium, Mg. [ R A M : M g = 24 ; N A = 6 × 1 0 23 m o l − 1 ] \left[RAM:\ Mg=24;\ N_A=6\times10^{23}mol^{-1}\right] [ R A M : M g = 2 4 ; N A = 6 × 1 0 2 3 m o l − 1 ]

3 × 1 0 22 a t o m s 3\times10^{22}\ atoms 3 × 1 0 2 2 a t o m s

3 × 1 0 23 a t o m s 3\times10^{23}\ atoms 3 × 1 0 2 3 a t o m s

3 × 1 0 24 a t o m s 3\times10^{24\ }atoms 3 × 1 0 2 4 a t o m s

3 × 1 0 25 a t o m s 3\times10^{25}\ atoms 3 × 1 0 2 5 a t o m s

Which of the following is the formula of phosphate ion?

P O 4 3 − PO_4^{3-} P O 4 3 −

S O 4 2 − SO_4^{2-} S O 4 2 −

3.2 Mole concept

Quiz

•

Chemistry

•

10th - 11th Grade

•

Practice Problem

•

Medium

•

NGSS

HS-PS1-7

Standards-aligned

MAU Moe

Used 19+ times

FREE Resource

20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Calculate the number of moles of
$4.5\times10^{23}$ nitrogen molecules, $N_2$ .
$\left[N_A:\ 6\times10^{23\ \ }mol^{-1}\right]$

0.75

0.65

0.55

0.45

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Calculate the number of particles in
3.5 mol of lead, Pb.
$\left[N_A:\ 6\times10^{23\ \ }mol^{-1}\right]$

$3.5\times10^{23\ }atoms$

$2.1\times10^{24}\ atoms$

$3.5\times10^{23\ }ions$

$2.1\times10^{24}\ ions$

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Calculate the number of particles in
0.5 mol of lead(II) ions, $Pb^{2+}$ .
$\left[N_A:\ 6\times10^{23\ \ }mol^{-1}\right]$

$0.5\times10^{23\ }atoms$

$3\times10^{23}\ atoms$

$0.5\times10^{23\ }ions$

$3\times10^{23}\ ions$

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Calculate the number of atoms in
2 mol of ammonia, $NH_3$ .
$\left[N_A:\ 6\times10^{23\ \ }mol^{-1}\right]$

$48\times10^{23\ }atoms$

$12\times10^{23}\ atoms$

$4.8\times10^{24\ }atoms$

$1.2\times10^{24}\ atoms$

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Calculate the number of atoms in
1 mol of aluminium, Al
$\left[N_A:\ 6\times10^{23\ \ }mol^{-1}\right]$

$6\times10^{23\ }atoms$

$12\times10^{23}\ atoms$

$6\times10^{24\ }atoms$

$1.2\times10^{24}\ atoms$

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Calculate the number of atoms in
32 g oxygen atom, O.
[RAM: O = 16]

512 mol

32 mol

16 mol

2 mol

Calculate the number of atoms in
16 g oxygen gas, $O_2$ .
[RAM: O = 16]

0.5 mol

2 mol

16 mol

32 mol

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3.2 Mole concept

20 questions

Calculate the number of moles of
$4.5\times10^{23}$ nitrogen molecules, $N_2$ .
$\left[N_A:\ 6\times10^{23\ \ }mol^{-1}\right]$

Calculate the number of particles in
3.5 mol of lead, Pb.
$\left[N_A:\ 6\times10^{23\ \ }mol^{-1}\right]$

Calculate the number of particles in
0.5 mol of lead(II) ions, $Pb^{2+}$ .
$\left[N_A:\ 6\times10^{23\ \ }mol^{-1}\right]$

Calculate the number of atoms in
2 mol of ammonia, $NH_3$ .
$\left[N_A:\ 6\times10^{23\ \ }mol^{-1}\right]$

Calculate the number of atoms in
1 mol of aluminium, Al
$\left[N_A:\ 6\times10^{23\ \ }mol^{-1}\right]$

Calculate the number of atoms in
32 g oxygen atom, O.
[RAM: O = 16]

Calculate the number of atoms in
16 g oxygen gas, $O_2$ .
[RAM: O = 16]

Calculate the mass in
0.3 mol chlorine atom, Cl.
[RAM: Cl = 35.5]

Calculate the mass in
3.2 mol ammonia gas, $NH_3$ .
[RAM: N = 14, H = 1]

Calculate the number of moles of $448cm^3$ of nitrogen gas, $N_2$ at STP.

$\left[Molar\ volume:\ 22.4dm^3mol^{-1}at\ STP\right]$

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3.2 Mole concept

20 questions

Calculate the number of moles of 4.5×10234.5\times10^{23}4.5×1023 nitrogen molecules, N2N_2N2​ . [NA: 6×1023 mol−1]\left[N_A:\ 6\times10^{23\ \ }mol^{-1}\right][NA​: 6×1023 mol−1]

Calculate the number of particles in3.5 mol of lead, Pb. [NA: 6×1023 mol−1]\left[N_A:\ 6\times10^{23\ \ }mol^{-1}\right][NA​: 6×1023 mol−1]

Calculate the number of particles in0.5 mol of lead(II) ions, Pb2+Pb^{2+}Pb2+ . [NA: 6×1023 mol−1]\left[N_A:\ 6\times10^{23\ \ }mol^{-1}\right][NA​: 6×1023 mol−1]

Calculate the number of atoms in2 mol of ammonia, NH3NH_3NH3​ . [NA: 6×1023 mol−1]\left[N_A:\ 6\times10^{23\ \ }mol^{-1}\right][NA​: 6×1023 mol−1]

Calculate the number of atoms in1 mol of aluminium, Al [NA: 6×1023 mol−1]\left[N_A:\ 6\times10^{23\ \ }mol^{-1}\right][NA​: 6×1023 mol−1]

Calculate the number of atoms in32 g oxygen atom, O.[RAM: O = 16]

Calculate the number of atoms in16 g oxygen gas, O2O_2O2​ .[RAM: O = 16]

Calculate the mass in0.3 mol chlorine atom, Cl.[RAM: Cl = 35.5]

Calculate the mass in3.2 mol ammonia gas, NH3NH_3NH3​ .[RAM: N = 14, H = 1]

Calculate the number of moles of 448cm3448cm^3448cm3 of nitrogen gas, N2N_2N2​ at STP. [Molar volume: 22.4dm3mol−1at STP]\left[Molar\ volume:\ 22.4dm^3mol^{-1}at\ STP\right][Molar volume: 22.4dm3mol−1at STP]

Create a free account and access millions of resources

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Popular Resources on Wayground

Discover more resources for Chemistry

Calculate the number of moles of
$4.5\times10^{23}$ nitrogen molecules, $N_2$ .
$\left[N_A:\ 6\times10^{23\ \ }mol^{-1}\right]$

Calculate the number of particles in
3.5 mol of lead, Pb.
$\left[N_A:\ 6\times10^{23\ \ }mol^{-1}\right]$

Calculate the number of particles in
0.5 mol of lead(II) ions, $Pb^{2+}$ .
$\left[N_A:\ 6\times10^{23\ \ }mol^{-1}\right]$

Calculate the number of atoms in
2 mol of ammonia, $NH_3$ .
$\left[N_A:\ 6\times10^{23\ \ }mol^{-1}\right]$

Calculate the number of atoms in
1 mol of aluminium, Al
$\left[N_A:\ 6\times10^{23\ \ }mol^{-1}\right]$

Calculate the number of atoms in
32 g oxygen atom, O.
[RAM: O = 16]

Calculate the number of atoms in
16 g oxygen gas, $O_2$ .
[RAM: O = 16]

Calculate the mass in
0.3 mol chlorine atom, Cl.
[RAM: Cl = 35.5]

Calculate the mass in
3.2 mol ammonia gas, $NH_3$ .
[RAM: N = 14, H = 1]

Calculate the number of moles of $448cm^3$ of nitrogen gas, $N_2$ at STP.

$\left[Molar\ volume:\ 22.4dm^3mol^{-1}at\ STP\right]$