Roundup, a herbicide manufactured by Monsanto, has the formula C3H8NO5P. How many moles of molecules are there in a 647.3-g sample of Roundup? I got the answer 2.305 x 10^24 but for some reason it’s not working. Is it the wrong one?

3.830177515 moles

Explanation:

You have :

Therefore: n=647.3/169

=3.830177515 moles

it forms an anion that has a larger radius. anions have a negative charge and are larger than the original atom.

considering the question as per the attachment

here we can see that the radon nuclide has 222 as the atomic mass number and 86 as the atomic number.

when it undergoes nuclear fission it gives polonium which has atomic mass number as 218 and atomic number will be 84 along with a helium nucleus which has 4 atomic mass number and 2 as its atomic number.

222 = 218 + 4 (atomic mass number)

86 = ? + 2; therefore ? = 86-2 = 84.

the atomic mass number of polonium will be 84.