Mole to Mass to Particle Conversion

What is the molar mass of cyanide (CN-).

• 13 g/mol

• 24.02 g/mol

• 26.02 g/mol

• 42.02 g/mol

Tags

NGSS.MS-PS1-1

How many atoms are in 1.50 moles of Hg?

• 9.03x10²³ atoms Hg

• 9.03x10²⁴ atoms Hg

• 903 atoms of Hg

• 9.03 atoms of Hg

The mass of one mole of an element is equal to

• its atomic number from the periodic table, but in amus.

• its atomic mass from the periodic table, but in amus.

• its atomic mass from the periodic table, but in grams.

• its atomic number from the periodic table, but in grams.

4.0 moles of H₂O would have what mass?

• 72 g

• 23 g

• 68 g

How many moles are in 22 g of argon? 

• 880 moles

• 0.55 moles

• 1.81 moles

• 5 moles

How many moles are in 15 grams of lithium?

• 0.5 moles

• 104.1 moles

• 2.2 moles

How many grams are in 7.8 moles of NaCl?

• 476grams

• 460 grams

• 452 grams

How many moles are in 9.8 grams of calcium?

• 0.2 moles

• 4.1 moles

• 1 mole

What is the mass of 0.89 mol of CaCl₂?

• 111 grams

• 0.008 grams

• 98.9 grams

• none of the choices

Determine the mass of 4.20 moles of C₆H₁₂

• 353 g

• 0.0499 g

• 337 g

• 2.53 x 10²⁴ g