MAK Medical

Aluminum 19
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Deluxe 19lbs Lightweight Compact Aluminum Transport Wheelchair Foldable New    US $99.99

Transport Chair Steel Wheelchair Aluminum Footrests 19    US $109.95

19 Drive Medical Aluminum Transport Chair only 19 lbs    US $154.00

Roscoe KTA1916SA BL Aluminum Transport 19 Wheelchair    US $123.51

Roscoe KTA1916SA BG Aluminum Transport 19 Wheelchair    US $123.51

Drive 19 Aluminum Transport Chair Blue Frame    US $129.95

Drive 19 Aluminum Transport Chair Black Frame    US $121.59

17 Drive Medical ATC Aluminum Transport Chair19 lbs    US $154.00

Invacare Lightweight Aluminum Transport Wheelchair Red 19 Seat    US $174.99

Flyweight Lightweight Transport Wheelchair 19 Deluxe Aluminum Green    US $192.55

Drive Medical Aluminum Transport Chair ATC 19 19W    US $120.00

Drive Medical Aluminum Transport Chair ATC 19 19W    US $129.00

Fly Lite Aluminum Transport Chair Drive Medical DFL19BLK    US $264.84

Drive Medical 19 Aluminum Transport Wheelchair Red    US $145.00

Aluminum Transport Chair Lightweight 19 Seat Belt    US $138.61

TranSport 19 Aluminum Wheelchair BLUE 250lb Capacity Folding Chair BLUE    US $209.95

Invacare Lightweight 19 Aluminum Transport WHEELCHAIR    US $139.99

ALUMINUM TRANSPORT COMPANION WHEELCHAIR 19 new blue    US $256.00

DRIVE FW19GR Deluxe Fly Weight Aluminum Lightweight Transport Wheelchair Plaid    US $175.31

Drive EXPEDITION ALUMINUM TRANSPORT CHAIR W LOOP LOCK EXP19BL    US $185.00

Drive Medical Deluxe Fly Weight Aluminum Transport Chair Model FW17 FW19    US $197.00

EJ782 1 Aluminum Transport Chair Lightweight 19 Wide Red    US $130.64

Nova Ortho Med Inc 19 Lightweight Aluminum Transport Chair with Hand Brake    US $149.99

Drive Medical ATC19BL 19 Inch Aluminum Transport Chair    US $145.00

Drive Medical Lightweight Aluminum Transport Chair ATC19 RD    US $110.00

What mass of gold (density=19.3 g/cm3) occupies the same volume as 2.20 mol of aluminum (density=2.70 g/cm3)?

thanks!

First convert 2.2 mol of Al to grams by multiplying with molecular mass (26.98g/mol) and then divide this mass by the density of aluminum (2.7 g/ cm3) to get the volume of Al. Next find out the mass of gold by multiplying the volume you got by the density of gold( g/mol). I got about 424 but you can do the calculation to get the exact number.