Stoich.Conversion quiz

How many molecules are in 9.44 moles of AlCl₃?

• 5.68 molec AlCl₃
• 5.68x10²⁴ molec AlCl₃
• 1.25 molec AlCl₃
• 1.25x10²³ molec AlCl₃

Tags

NGSS.HS-PS1-7

What is the molar mass of PbSO₄?

• 303.27 g/mol

• 255.27 g/mol

• 163.87 g/mol

• 372.27 g/mol

Which conversion factor should be used for the following question " How many molecules are there in 4.00 moles of glucose, C₆H₁₂O₆? 

• 1 mole = 78.12 g
• 1 mole = 22.4 L 
• 1 mol = 6.02x 10²³ particles 
• more than one

Which conversion factor should be used to solve the following, "How many moles in 28 grams of CO₂?"

• 1 mol = 22.4 L 
• 1 mol = 44.01 g
• 1 mol = 6.02x10²³ atoms
• more than one

Which of the following dimensional analysis setups will correctly convert 27.76g of Li to atoms of Li?

• A
• B
• C
• D

Tags

NGSS.HS-PS1-7

Which has more atoms, 12.0 mol of C or 12.0 mol of Ca?

• 12.0 mol C
• 12.0 mol Ca
• They are equal

Match the following...

• dividing by the molar mass

• You convert grams to moles by...

• multiplying by 22.4L

• You convert moles to grams by...

• dividing by 22.4L

• You convert moles to liters by...

• multiplying by the molar mass

• You convert moles to particles by...

• multiplying my avagadro's constant

• You convert liters to moles by...

What is the mass of 2.50 mole of oxygen gas O₂?

• 40 g

• 80 g

• 16 g

• 32 g

How many moles are present in 32.3 grams of carbon dioxide (CO₂)?

• 44.01 moles

• 1421.52 moles

• 32.3 moles

• 0.73 moles

Stoichiometry is a lot like ​ (a)   , when converting ingredients and comparing ratios of ingredients. For example 1 cup is = 16 tablespoons. This means that 5.3 cups can be ​ (b)   into tablespoons by ​ (c)   5.3 cups by 16 tablespoons/​ (d)   . This can be applied to compounds. ​ (e)   liters of any substance are equal to one mole. One mole is equal to 6.022x10^23 atoms.

• cooking
• converted
• multiplying
• 1 cup
• 22.4
• gardening
• dividing
• molar mass

Tags

NGSS.HS-PS1-7