General Chemistry 1: Atomic Mass, Mole Concept and Avogadro's Number Review

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What is the value of Avogadro’s number?

5.022 X 10^22

6.022 X 10^23 (correct)

6.670 X 10^23

7.405 X 10^23

What is the atomic mass used to find?

The quantity of particles in a substance

The charge of an atom

The number of protons in an element

The average mass of an element and molecules (correct)

What does the term 'mole' refer to?

Number of protons and neutrons in an atom

Quantity of particles in a substance equal to Avogadro’s number (correct)

Value of 6.022 X 10^23

Mass of 1 atom expressed in atomic mass units

Where can the average atomic mass of an element be found?

Number of protons and neutrons Signup and view all the answers

What does the mass of an atom divided by the atomic mass unit give?

Relative atomic mass of an element Signup and view all the answers

Which particle unit refers to covalent compounds?

Molecules Signup and view all the answers

What is the value of Avogadro's number?

6.022 x 10^23 Signup and view all the answers

What is the formula mass of Na₃PO₄ (sodium phosphate)?

163.94 amu Signup and view all the answers

What is the molar mass of carbon dioxide (CO₂)?

44.01 g/mol Signup and view all the answers

How many moles are there in 460.0 g of sodium (Na)?

20.01 moles Signup and view all the answers

How many sodium atoms are there in 460.0 g of sodium (Na)?

$2.404 \times 10^{24}$ atoms Signup and view all the answers

How many atoms and the mass of 0.85 mole of copper (Cu)?

$5.12 \times 10^{23}$ atoms, 27 g Signup and view all the answers

How many grams and atoms of hydrogen are present in 65 grams of glucose (C₆H₁₂O₆)?

$4.824 \times 10^{23}$ atoms, 48 g Signup and view all the answers

General Chemistry 1: Atomic Mass, Mole Concept and Avogadro's Number Review

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Questions and Answers

What is the value of Avogadro’s number?

What is the atomic mass used to find?

What does the term 'mole' refer to?

Where can the average atomic mass of an element be found?

What does the mass of an atom divided by the atomic mass unit give?

Which particle unit refers to covalent compounds?

What is the value of Avogadro's number?

What is the formula mass of Na₃PO₄ (sodium phosphate)?

What is the molar mass of carbon dioxide (CO₂)?

How many moles are there in 460.0 g of sodium (Na)?

How many sodium atoms are there in 460.0 g of sodium (Na)?

How many atoms and the mass of 0.85 mole of copper (Cu)?

How many grams and atoms of hydrogen are present in 65 grams of glucose (C₆H₁₂O₆)?

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