Stoichiometry

What is Stoichiometry?

• It's the quantitative relationship between reactants and products in a reaction

• It's the study of bugs

• It's the mas of the object

• it's the volume of the object

Tags

NGSS.HS-PS1-7

What is a Mole?

• An Animal that digs

• A unit of measure that counts number of atoms

• A blemish on the face

• A relationship between products and reactants

Tags

NGSS.HS-PS1-7

What are products?

• It's the answer when with multiplication

• It's the atomic mass

• The end part of the reaction (behind the arrow)

• The start of the reaction (in front of the arrow)

Tags

NGSS.HS-PS1-7

NaClO₃ (s) --> 2NaCl (s) +3 O₂ (g)
12.00 moles of NaClO₃ will produce how many grams of O₂?

• 256 g of O₂

• 576 g of O₂

• 288 g O₂

Where is the mole to mole ratio in this set up? (pick one)

Tags

NGSS.HS-PS1-7

Locate the following on the example stoichiometry calculation.

a

b

c

d

mole to mole ratio

mole to gram ratio for AlCl3

what was given to start

mole to gram ratio for Al

Tags

NGSS.HS-PS1-7

Where is the mole to gram ratio for Al in this set up? (pick one)

Tags

NGSS.HS-PS1-7

For the reaction represented by the equation Cl₂ + 2KBr → Br₂ + 2KCl, how many grams of potassium chloride can be produced from 356 grams potassium bromide?

• 749 g

• 225 g

• 479 g

• 814 g

Tags

NGSS.HS-PS1-7

How many molecules are in 13.5 g of sulfur dioxide, SO2?

​ (a)   x ​ (b)   x ​ (c)  

​ (d)   1 mol SO2

• 13.5 g SO2

• 1 mol SO2

• 6.022 x 10^23 molecules

• 64.066 g SO2

Tags

NGSS.HS-PS1-7

How many moles are equal to 145 g of zinc nitrate, Zn(NO3)2?

• 1 mol Zn(NO3)2

• 189.36 g  Zn(NO3)2

Tags

NGSS.HS-PS1-7