Question

Please help me I will do anything can you please show your work

Answer 1

(1) 720 seconds (2) 10800 seconds (3) 17 dozens (4) 1.45 x
`10^(25)` (5) 13.29 moles

Step-by-step explanation:

(1) 720 seconds

1 minute = 60 seconds

12 minutes = 720 seconds (12 x 60)

(2) 10800 seconds

1 hour = 60 minutes 1 minute = 60 seconds

3 x 60 = 180 minutes in 3 hours

180 x 60 = 10800 seconds in 180 minutes that are in 3 hours

(3) 17 dozens

1 dozen = 12

204 ÷ 12 = 17 dozens

(4) 1.45 x
`10^(25)`

8.00 moles CO2 x
`(3 moles atoms)/(1 moles CO2)` = 24.0 moles atoms

24.0 moles x
`(6.022 × 10^(23) )/(1 mole) }` = 1.45 x
`10^(25)`

(5) 13.29 moles

sorry but I'm not fully sure if this one is correct

8 x
`10^(24)` x
`(1 mole)/(6.02 × 10^(23) )` = 13.29 moles