Mass to Atoms

Shivani measures out 6.0 moles of Epsom salt (MgSO₄) to put in her bath. How many grams of MgSO₄ went in the bath?

• 3.6 x 10²⁴ g

• 720 g

• 0.050 g

• 340 g

The mass number of an atom is the mass of ______ + _____

• protons + neutrons

• protons + electrons

• neutrons + nucleus

• protons + nucleus

Tags

NGSS.MS-PS1-1

The total number of protons and neutrons in the nucleus of an atom

• Atomic Number

• Mass Number

• Atomic Theory

• Electron Cloud

Tags

NGSS.HS-PS1-8

The unit used to express the mass of the particles in an atom.

• Proton

• AMU

• Neutron

• Electron

The atomic mass is the

• number of protons and neutrons inside the nucleus

• number or electrons or protons

• number of protons, neutrons and electrons

Tags

NGSS.MS-PS1-1

What is the mass of one mole of carbon atoms?

• 12 grams

• 6 grams

• 24 grams

• 18 grams

How many atoms are there in 12 grams of carbon?

Which of the following represents Avogadro's number?

Tags

NGSS.HS-PS1-7

If you have 18 grams of water, how many moles of water do you have?

• 1 mole

• 2 moles

• 0.5 moles

• 3 moles

What is the molar mass of water?

• 18 g/mol

• 16 g/mol

• 20 g/mol

• 22 g/mol