Power Tools

Alum Oxide

Chem help on energy and alum!!?

Assume that one aluminun can is completely reacted with oxygen to produce aluminun oxide, and that this energy can be completely converted to electrical energy. how long could this energy keep a 60 watt light bulb burning? Al= 26.98 g/mol O= 16g/mol
ΔHf= 1670kJ/mole, one can = 14g, 1watt= 1 J/s

2 Al & 1.5 O2 –> 1Al2O3 …… ΔHf= 1670kJ / 2mole of Al

find moles, using molar mass:
14 g Al @ 26.98 g/mol = 0.519 moles of Al

find energy:
0.519 mol Al @ 1670kJ / 2mole of Al => 433.28 kJ

find watt-seconds:
433,280 Joules @ 1 watt-sec/Joule = 433,280 watt-sec

find seconds for a 60 watt bulb:
433,280 watt-sec/ 60 watt = 7221.4 seconds

find minutes: 120. minutes
find hours: 2.0 hours

Faithfull Blue Alum. Oxide Cloth Roll 50mx50mmx80g £29.00

Flexovit Alum. Oxide Fibre Discs 125mm Med. 50g x3 £4.94

Faithfull Blue Alum. Oxide Cloth Roll 50mx50mmx180g £27.85

DRAPER PK10 230 X 92MM 80G ALUM OXIDE SAND SHEETS £6.71

Faithfull Alum. Oxide Paper Roll Yellow 115mmx50m 120g £28.48

Faithfull Alum. Oxide Paper Roll Green 115 mmx5M 120G £6.50

Faithfull Alum. Oxide Paper Roll Green 115 mmx5M 60G £7.54

Faithfull Alum Oxide Paper Roll Red 1M Hook & Loop Fine £5.44

Faithfull Alum. Oxide Paper Roll Yellow 115mmx5m 80g £6.40

Faithfull Alum. Oxide Paper Roll Green 100mmx50M 120G £32.54

2 Alum Oxide Flap Discs 115mm 80 grit Free Postage £3.95

Faithfull Alum. Oxide Paper Roll Yellow 115mmx10m 80g £9.02

Faithfull Floor Disc Ewt Alum. Oxide 178mmx22mm 80g £2.00

Faithfull Floor Disc Ewt Alum. Oxide 178mmx22 mm 40G £4.24

Faithfull Alum. Oxide Disc DID3 Holed 125mmx80g (25) £12.15

Faithfull Alum. Oxide Paper Roll Green 100mmx50M 40G £40.20

Faithfull Alum. Oxide Paper Roll Green 115 mmx10M 120G £12.43

Faithfull Alum. Oxide Paper Roll Green 115 mmx10M 40G £13.78

Faithfull Alum. Oxide Paper Roll Yellow 115mmx10m 120g £8.65

Flexovit Alum. Oxide Fibre Discs 125mm Fine 80g x3 £4.90

Flexovit Alum. Oxide Fibre Discs 115 mm Coarse 50g x3 £4.90

Norton Alundum 10″ x 1-1/4″ x 1-1/4″ Medium Grit Grinding wheel Alum Oxide NEW £25.30

Draper Pk10 230 X 92Mm 80G Alum Oxide Sand Sheets £5.22

Faithfull Blue Alum. Oxide Cloth Roll 50mx25mmx120g £15.54

Faithfull Blue Alum. Oxide Cloth Roll 50mx25mmx80g £16.08

75 x 457 50 grit red sanding belts wood metal 10 sander cord alum oxide metal £6.90

Faithfull Alum. Oxide Disc DID3 Holed 125mmx120g (25) £12.15

Faithfull Blue Alum. Oxide Cloth Roll 50mx50mmx120g £27.85

Faithfull Alum. Oxide Paper Roll Green 115 mmx50M 80G £38.13

Faithfull Blue Alum. Oxide Cloth Sheet 100g x25 £18.66

Faithfull Alum. Oxide Paper Roll Yellow 115mmx50m 80g £30.47

Faithfull Alum. Oxide Paper Roll Green 100mmx50M 60G £38.71

18 mm Nikasil Alum Oxide Engine Cylinder Flex-Hone 320 £13.28

Pk of 10, 330mm X 10mm Grit 120, Alum Oxide Cloth Belt £7.86

Flexovit Alum. Oxide Fibre Discs 115 mm Coarse 36g x3 £5.05

Dremel 26150 953 JA Grinding Stone Alum.oxide Pk of 3 Brand New – FREE SHIPPING £7.51

ALUM/OXIDE EMERY CLOTH SHEETS 230MM X 280MM 80G QTY 10 £4.95

ALUM/OXIDE EMERY CLOTH SHEETS 230MM X 280MM 60G QTY 10 £4.95

ALUM/OXIDE EMERY CLOTH SHEETS 230MM X 280MM 40G QTY 10 £4.95

ALUM/OXIDE EMERY CLOTH SHEETS 230MM X 280MM 280G QTY 10 £4.95

ALUM/OXIDE EMERY CLOTH SHEETS 230MM X 280MM 150G QTY 10 £4.95

ALUM/OXIDE EMERY CLOTH SHEETS 230MM X 280MM 120G QTY 10 £4.95

ALUM/OXIDE EMERY CLOTH SHEETS 230MM X 280MM 100G QTY 10 £4.95

6pc. DRUM SANDING ABRASIVE SPIRABANDS SPIRAL BANDS 40G 150G GARRYSON ALUM. OXIDE £1.99

6pc. DRUM SANDING ABRASIVE SPIRABANDS SPIRAL BANDS 40G 150G GARRYSON ALUM. OXIDE £1.99

6pc. DRUM SANDING ABRASIVE SPIRABANDS SPIRAL BANDS 40G 150G GARRYSON ALUM. OXIDE £1.99

6pc. DRUM SANDING ABRASIVE SPIRABANDS SPIRAL BANDS 40G 150G GARRYSON ALUM. OXIDE £1.99

ALUM/OXIDE EMERY CLOTH SHEETS 230MM X 280MM 80G QTY 5 £2.99

ALUM/OXIDE EMERY CLOTH SHEETS 230MM X 280MM 60G QTY 5 £2.99

ALUM/OXIDE EMERY CLOTH SHEETS 230MM X 280MM 40G QTY 5 £2.99

Aluminum Oxide Abrasive Blast Cabinet for Powder Coating Co.