Determine the number of S. F. in each measurement. a) 508.00 liters
d) 0.049490 minutes
b) 807700 kilograms
e) 1.02000 x 10
grams
c) 0.100 meters
f) 3.2836 x 10-8 kilograms
g) 0.000452 mililiters
h) 0.0094 mililiters
i) 55000 seconds

*tilts head* sounds more like a statement

1. 1 mole of anything contains 6.022x10^23 pieces  

d  

2. a  

3. c, number  

5. 1.24x10^24atoms / 6.022x10^23atoms/mole = 2moles h2 atoms  

6. fe2br3 mass = 2moles x mass fe + 3 moles x mass br  

molar mass = grams / number of moles = g/mole  

to find moles = g / molar mass  

to find mass = g = molar mass / moles