Particles and Moles

Find the Molar Mass of:
Ga₂(SO₃)₃

• 280.75 g/mol
• 400.83 g/mol
• 379.65 g/mol
• 480.93 g/mol

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}

How many moles are 2.85 x 10²⁰ atoms of iron?

• 0. 0004moles
• 1.7moles
• 0.00moles
• 473 moles

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

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

• kilogram
• gram
• kelvin
• mole

Tags

NGSS.HS-PS1-7

What is the molar mass of AuCl₂?

• 96 g
• 130 g
• 232.5 g
• 267.87 g

A mole of carbon disulfide contains 6.02 x 10²³ _____.

• atoms
• formula units
• ions
• molecules

How many particles are in a mole?

• 602
• 602 million
• 602 moles
• 6.02 x 10²³

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

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