Chem Final

Crunch the numbers

100

This is the amount of moles in 2.3 x 10²⁶ molecules of boron.

What is 382.06 moles?

200

This is the mass of Ba₃(PO₄)₂.

What is 601.93 g?

300

This is the percent error if the theoretical yield is 42.6 g and the actual yield is 37.4 g.

What is 12.2%

400

Given  2 Ag₂O -> 4 Ag + O₂, this is the mass of oxygen if 2.3 moles of Ag₂O are reacted.

Ag₂O = 231 g    O₂ = 32 g

What is 36.8 g?

500

Given the equation 2 Ag₂O -> 4 Ag + O₂ , this is the mass of oxygen that can be made if 1.4 g of Ag₂O are reacted. 

(Mass of Ag₂O= 231 g  Mass of O₂ = 32 g)

What is 0.096 g

Balance it

100

This is how you balance the equation

Ag₂O  + Ag  -->  O₂

What is 2Ag₂O  + 4Ag  -->  O₂

200

This is how you balance 

Na₃PO₄ + KOH ->  NaOH  + K₃PO₄

What is Na₃PO₄ + 3KOH -> 3 NaOH  + K₃PO₄ ?

300

This is how you balance CaCl₂  +  Al(OH)₃ -> Ca(OH)₂ + AlCl₃

What is 

3CaCl₂  + 2 Al(OH)₃ -> 3Ca(OH)₂ +2 AlCl₃ ?

400

This is how one balances 

C₄H₁₀ + O₂ -> CO₂ + H₂O

What is 

2C₄H₁₀ + 13O₂ -> 8CO₂ + 10H₂O

500

This is how you balance 

HIO₃  +  FeI₂  + HCl ->  FeCl₃  + ICl  + H₂O

(4 minute time limit)

What is 

5HIO₃ +4 FeI₂ + 25 HCl -> 4 FeCl₃ +13 ICl +15 H₂O

It's all about the Base..and the acids

100

A substance with a pH below 6 is a(n)

What is an acid?

200

A substance with a pH of 10 has a pOH of this.

What is 4?

300

A substance with a H⁺ concentration of 

1.2 x 10^-2 has a pH of this.

What is 1.92?

400

This is the H⁺ concentration if the pOH is 3.2.

What is 1.58 x 10^-11 M?

500

This is the OH^- concentration if the H⁺ is 

2.1 x 10^-3 M.

What is 4.76 x 10^-12M?

Talk the Talk

100

This is what is being dissolved in solution (ex Kool-aid).

What is solute?

200

This is a substance with a specific amount of water molecules attached.

What is a hydrate?

300

This is the definition of indicator

What is a weak organic acid or base that changes color with pH?

400

This is the definition for buffer.

What is a substance that resists a change in pH?

500

This is the definition of concentrated.

What is has a lot of solute for the same amount of solvent?

Hodge Podge

100

This type of reaction always yields CO₂ and water.

What is combustion?

200

This type of substance feels slippery.

What is a base?

300

This is the name of HCl (acid name)

What is hydrochloric acid?

400

This is the name of H₃PO₄

What is phosphoric acid?

500

This is the acid, base, conjugate acid, conjugate base in the equation

NH₄⁺ + Cl^- -> NH₃ + HCl

What is 

NH₄⁺ + Cl^- -> NH₃ + HCl

A            B       CB    CA