CHEM 1201 Lecture : Lecture 2
Document Summary
115 pounds to grams english to metric conversion. 115 pounds x 453. 6g = 52200g given 3sf, next 4 sf= 3 sf calculator gives, 52164. 515m x 1 km x 0. 62137mi x 60 sec x 60 min = 1150 miles per hour. 1 sec 1x103m 1km 1 min 1 hr given has 3 sf, second conv is exact number do not use for sig figs, third has 5 sf, exact, exact so our answer must have 3 sf. 1 km= 1 x 103m 1 l= 1000 ml 1cm3= 1 ml. We can cube entire equivalence statements (1km)3=(1x103)3m3 we can convert cubic meters to cubic cm (1cm)3=(1x10-2m)3. 1. 36x109km3 m3 cm3 - ml - l. 1. 36 x 109km3 x 1 x109m3 x 1 cm3 x 1 ml x 1 l. 1. 00 gal x 3. 7854 l x 1000 ml x 1. 00 g = 3785. 4 g 3. 79x103.
