1)Solve each of the following problems using dimensional analysis (or another method)

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1)Solve each of the following problems using dimensional analysis (or another method). Show your work. (Use a periodic table to look up the necessary atomic masses.) 

 

1. 75 g KMnO4 =

 

molecules KMnO4

 

1. 7.23 × 1024 Al atoms =

 

grams Al

 

1. 9.23 × 1023 Au atoms =

 

moles Au

 

1. 125 g H3PO4 =

 

molecules H3PO4

 

1. 0.75 moles CO2 =

 

total atoms