moles to particles quiz

1.

Multiple Choice

5 mins

1 pt

Find the Molar Mass of:
Ga₂(SO₃)₃

280.75 g/mol

400.83 g/mol

379.65 g/mol

480.93 g/mol

2.

Multiple Choice

3 mins

1 pt

How many particles are there in 31.8 moles?

5.28 x 10^-23 particles

1.91 x 10²⁵ particles

5.28x 10-^{25 particles}

1.91 x 10^{22 particles}

3.

Multiple Choice

3 mins

1 pt

How many moles are 2.85 x 10²⁰ atoms of iron?

0. 0004moles

1.7moles

0.00moles

473 moles

4.

Multiple Choice

3 mins

1 pt

How many moles of copper are 4.57 x 10¹⁵ atoms of copper?

8 x 10^-9 moles

2.75 x 10^-33 moles

8 x 10⁹ moles

2.75 x 10³³ moles

5.

Multiple Choice

1 min

1 pt

Avogadro's number of representative particles is equal to one_____.

kilogram

gram

kelvin

mole

6.

Multiple Choice

2 mins

1 pt

What is the molar mass of AuCl₂?

96 g

130 g

232.5 g

267.87 g

7.

Multiple Choice

30 sec

1 pt

A mole of carbon disulfide contains 6.02 x 10²³_____.

atoms

formula units

ions

molecules

8.

Multiple Choice

5 mins

1 pt

How many particles are in a mole?

602

602 million

602 moles

6.02 x 10²³

9.

Multiple Choice

2 mins

1 pt

Determine the amount of moles in 4.50 x 10²³ atoms of fluorine.

9.03 x 10⁴⁶ moles

0.747 moles

4.73 moles

0.0131 moles

10.

Multiple Choice

2 mins

1 pt

Determine the number of
atoms in
0.50 moles of zinc.

3.01 x 10²³ atoms

4.15 x 10^-24 atoms

2.71 x 10^-22 atoms

303 atoms

11.

Multiple Choice

30 sec

1 pt

What is the molar mass of CaCl₂?

24.31 g/ml

111.21 g/mol

59.76 g/mol

70.90 g/mol

12.

Multiple Choice

30 sec

1 pt

Convert 1.5 moles of beryllium oxide to molecules

25.01 molecules

9.0 x 10²³molecules

0.12 molecules

1.80 x 10²⁴ molecules

13.

Multiple Choice

30 sec

1 pt

Five moles of Cl₂ has the same particles in five moles of O₂

True

False

14.

Multiple Choice

30 sec

1 pt

Which list of number of atoms in Mg(NO2)₂ is right?

Mg : 1--NO : 2

Mg : 1-- N : 6--O: 2

Mg : 1-- N: 1-- O: 2

Mg : 1-- N: 2-- O: 4

15.

Multiple Choice

30 sec

1 pt

Which list of number of atoms in K₃PO₃is right?

K : 3--PO : 3

K :3--P : 1--O: 3

K : 3-- P: 4--O: 1

K : 3-- P: 5--O: 4

16.

Multiple Choice

30 sec

1 pt

How to calculate molar mass of CO₂?

12+2x16 =44

12+16=28

2x12+2x16=56

4+6=10

17.

Multiple Choice

3 mins

1 pt

How many formula units are there in 5.5 moles potassium chloride?

4.08 x 10^-24

3.31 x 10²⁴

33.11

0.98

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