Question

Please help chem final tomorow! A sample of 0.78 moles of a metal M reacts completely with excess chlorine to form 45.58 grams of MCl.
How many moles of Cl are in the sample of MCl that forms?

Answer 1

@ganeshie8

Answer 2

can you write the balanced reaction for this

Answer 3

I'm not sure how exactly since M isn't a real element, but I assume it's M+Cl->MCl

Answer 4

ok let me check it right now i am busy i will let u know after some time:)

Answer 5

ok:)

Answer 6

@Nurali @whpalmer4

Answer 7

@AwkwardAvoidnceViking

Answer 8

the compound you form is MCl, meaning that for every atom of M it uses 1 atom of Cl

Answer 9

from this and the number of moles of M are used you should be able to tell how many moles of Cl are used

Answer 10

So it would be the same number, 0.78. You don't have to do anything with the grams?

Answer 11

oh the second part of the question asks how many grams of M there are

Answer 12

so the weight of the complete compound is 45.58 grams?
mass is not created or destroyed
you have .78 moles of Cl, how much mass is that?

Answer 13

27.651g so the mass of M would be 17.929?

Answer 14

looks like it

Answer 15

hey its 0.78 moles of Cl :)

Answer 16

yeah thank you:)