The particle of dust has a mass of 7.53 × 10^-10 kilograms . find the weight of 5 billion dust particles

PLZ HELP !!

Question

The particle of dust has a mass of 7.53 × 10^-10 kilograms . find the weight of 5 billion dust particles 

PLZ HELP !!

diamondboy · Answer

Hi

diamondboy · Answer

So we would need a conversion factor

diamondboy · Answer

So the question is basically if one dust particle= 7.53x10^-10kg then 5 billion dust particles would be?

anonymous · Answer

@diamondboy I had a very long and exhausting week. I was trying to do my math homework but at the moment I got fed up and put my work away I'll finish it tomorrow though thanks for your help I really appreciated it ;)

diamondboy · Answer

no p....thank God :)

whpalmer4 · Answer

You know how much one dust particle weighs (masses, actually).  You want to find the mass of 5,000,000,000 of them.  Multiply the unit mass (mass of 1 dust particle) by the number of dust particles.  Do you know how to multiply numbers when one is in scientific notation (the mass) and one is not (the number of particles)?