Number of Particles, Moles and Molar Mass

How many grams of silver is present in one mole?

Silver = 107.87

• 107.87 amu

• 107.87 grams

• 215.74 amu

• 215.74 grams

Tags

NGSS.HS-PS1-7

What is the molar mass of Propane (C₃H₂)?

Carbon = 12.01

Hydrogen = 1.01

• 13.03 amu

• 13.03 g/mol

• 38.05 amu

• 38.05 g/mol

What is the molar mass of barium nitrate, Ba(NO₃)₂?

Barium = 137.33

Nitrogen = 14.01

Oxygen = 16.00

• 261.35 g/mol

• 213.35 g/mol

• 199.34 g/mol

• 167.34 g/mol

Tags

NGSS.HS-PS1-1

How many water molecules are in 5.2 moles of water?

• 6.0 x 10²³ molecules

• 5.2 molecules

• 3.1 x 10²⁴ molecules

• 8.6 x 10^-24 molecules

What is the mass of 0.89 mol of CaCl₂?

• 111 grams

• 0.008 grams

• 98.9 grams

• none of the choices

If you were converting from moles Z to grams Z, which conversion factor would you use?

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Tags

NGSS.HS-PS1-7

If you were converting from grams Z to moles Z, which conversion factor would you use?

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How many molecules of diphosphorus pentachloride are in exactly 1 mole of P₂Cl₅?

• 2 atoms

• 5 atoms

• 2 moles

• 5 moles

• 6.022 x 10²³ molecules

Tags

NGSS.HS-PS1-7

How many atoms of phosphorus are in exactly 1 molecule of P₂Cl₅

• 2 atoms

• 5 atoms

• 2 moles

• 5 moles

• 6.022 x 10²³ molecules

Tags

NGSS.MS-PS1-1

How many phosphorus atoms are in 11 formula units of calcium phosphate, Ca₃(PO₄)₂?

Number only. No Units.

Tags

NGSS.MS-PS1-1