How many moles of atoms are in 9.00 g of 13c? express your answer numerically in moles?

Number of moles is defined as the ratio of given mass in grams to the molar mass of compound.

Number of moles =

Now, put the value of given mass of in grams and molar mass of in g/mol i.e. 13 g/mol.

Thus,

number of moles =

= 0.692 mol

Hence, number of moles of = 0.692 mol

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)

i think it's c. if you look search electronic symbol on google and then click on wiki it shows you a