Chemistry (Bolton)

Week 27

Monday 12 March

• go over homework

o p. 386 #1-4 (in notes)

• review vocab

· video: EVEREST, The Death Zone

o start 17:00/beg/22:40

o end 40:00/28:00/47:00

Tuesday 13 March

• vocab quiz
• go over lab practical
• Chapter 11 Test

· video: EVEREST, The Death Zone

o start 40:00/28:00/47:00

o p2 -> 42 min

• review for test

Wednesday 14 March

• Chapter 12 Test

Thursday 15 March

• clean desks (period 7)
• video: milk_exp_1.flv (gensci)
• Surface Tension Demo
• 1) water, six drops coloring, two drops soap
• rinse all soap from plate
• 2) skim milk (< 0.5%), six drops coloring, two drops soap
• rinse all soap from plate
• 3) whole milk (3%), six drops coloring, two drops soap
• rinse & discard plate
• C17-1 pp. 511-514
• calorimeter
• temperature
• joule
• heat
• specific heat
• q = m ∆T C_P
• q = heat gained or lost (∆ internal E)
• m = mass
• ∆T = T₂ - T₁ = change in temperature
• C_P = specific heat constant
• q = mH_F
• m = mass
• H_F = heat of fusion
• q = mH_v
• m = mass
• H_v = heat of vaporization

Friday 16 March

• review C17-1 terms
• thermochemistry terms
• ice C_P = 2.06 J/g^oC
• water H_F = 333.6 J/g
• water C_P = 4.184 J/g^oC
• water H_v = 2264 J/g
• steam C_P = 1.87 J/g^oC
• e.g. 10g ice at -25^oC to steam at 150^oC
• 0^oC ice placed in warm water
• q_ice = m_ice H_F
• q_water = m_water ∆T C_P
• (see board)
• 10 g ice into 90 g water; ∆T = 10^oC