Mole conversions g-mol-atoms

What is the molar mass of Hydrogen Peroxide (H₂O₂)?

• 48 g/mole
• 34.02 g/mole
• 36.5 g/mole
• 35.5 g/mole

How many moles are in 16.94g of water (H2O)?

• 16.94 mol H₂O

• 0.9401 mol H₂O

• 305.3 mol H₂O

• 1.063 mol H₂O

What is the mass in grams of 2.90 mol CH_4?

• .0512 g
• 5.5 g

• 46.4 g

• 16 g

How many moles are in 19.82 g Mg? 

• 1.226mol Mg
• 481.7mol Mg
• 1.000mol Mg
•  0.8156 mol Mg

Tags

NGSS.HS-PS1-7

What is the molar mass of (NH₄)₂CO₃ ?

• 144.0g/mol

• 138.0 g/mol

• 96.1 g/mol

• 78.1 g/mol

How many moles are in 98.3 g of Aluminum Hydroxide (Al(OH)₃)?

• 78.0 mol

• 1.30 mol

• 6.60 mol

• 5.90 mol

Tags

NGSS.HS-PS1-7

How many atoms are in a 3.56 mol sample of Cu?

• 2.14 x 10²⁴ Cu atoms

• 6.02 x 10²³ Cu atoms
• 0.056 Cu atoms
• 1 Cu atom

You have 8.65 x 10²⁵ atoms arsenic. How many grams do you have?

• 144 g As
• 10,765 g As
• 107 g As
• 6.02x10^23 As

How many molecules are in 2.5 mol of NaCl?

• 1.51x10²³
• 146
• 4.15
• 1.51x10²⁴

Tags

NGSS.HS-PS1-7

How many mol are in 1.2 x 10²⁴ molecules of CO?

• 28 mol

• 1.99 mol

• 6.02 mol

• 0.1 mol