A can of hairspray is left inside your car after a trip to Target. The can has an internal pressure of 760 Torr when the temperature is 285K. By the middle of the afternoon

the temperature is now 345K. What is the new pressure inside the can of hairspray?

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

i believe it is 40–40–20%

explanation: