Question

Can anyone help with me with my chemistry problem, will give medal and become a fan!
what is the total number of formula units in 0.89g of CsOH?

Answer 1

do you know how to calculate the molar mass of CsOH?

Answer 2

no

Answer 3

do you have a periodic table?

Answer 4

I can get on one the internet
what am I looking for

Answer 5

atomic mas of the 3 elements in your formula and add them

Answer 6

all together it's about 150 amu

Answer 7

yes that is the molecular mass of CsOH, then you calculate the number of moles in the given mass, 0.89g and then the number of formula units (molecules) with the avogadro's number

Answer 8

so what is the formula of how the problem should be set up, I'm confused

Answer 9

number of moles = mass/ formula mass

molecular mass (covalent compounds) = formula mass (ionic compounds)

Answer 10

do you use conversion factors?

Answer 11

no

Answer 12

number of moles = mass/ molecular mass

Answer 13

then , units formula = number of moles x avogadro's number

Avogadro's number= 6.02 x 10^23

Answer 14

so the first part would be .89=x/150?

Answer 15

is that part a solve for x kind of problem or is that something I get from the periodic table

Answer 16

no! no "x" here

n= 0.89/150 = number of moles

Answer 17

oh haha okay so the total answer is about 3.572

Answer 18

no

Answer 19

\[(0.98/150) \times 6.02 \times 10^{23}\]

Answer 20

that's what I got from putting that into my calculator

Answer 21

or is it 3.572x10^21

Answer 22

that sounds better i got 3.93 x 10 ^21

Answer 23

did you do the right number, it was .89 not .98?