RICE table practice

R.I.C.E Tables

By VICTORIA MOORE

Match

What does each letter of R I C E stand for?

• R

• I

• C

• E

Reaction

Initial

Change

Equilibrium

• Reaction

• Initial

• Change

• Equilibrium

Labelling

Label the table

I is initial: use mole ratio

C is change: (unknown use coefficient and x)

E is equilibrium: combine Initial and Equilibrium (__-x) OR (__+x)

Drag labels to their correct position on the image

3

2

-x

-3x

+2x

1-x

1

3-3x

2+2x

Hotspot

Locate the equilibrium concentration for H2

Identify the change in the concentration of nitrogen

Identify the beginning concentration of NH3

Draw

H₂(g) + I₂(g) ⇌ 2HI(g)

Initially, H₂ and I₂ were present at concentrations of [H₂] = 3.80 M and [I₂] = 2.70 M.

The equilibrium concentration of I₂ is 0.0900 M.

Fill in the rest of spaces

Open Ended

Reaction: H₂(g) + Br₂(g) ⇌ 2HBr(g)

Describe what information the table gives you.

1. why is there no initial HBr?

2. Why is the change -0.200397 for the reactants but .400794 for the product?

3. How was equilibrium of Br2 calculated?