How many atoms are in 0.697 g of gallium?

moles = mass / molar mass

moles Ga = 0.697 g / 69.7 g/mol

= 0.0100 moles

1 mole atoms = 6.022x10^23 atoms

So atoms Ga = moles x 6.022x10^23 atoms/mol

= 0.0100 mol x 6.022x10^23

= 6.02x10^21 atoms Ga

Explanation:

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Explanation:

answer: h+ its less than oh

explanation:

question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?

answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do

explanation:   if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

question answered by

(jacemorris04)