Question

Fluorite, a mineral of calcium, is a compound of the metal with fluorine. Analysis shows that a 2.26 g sample of fluorite contains 1.51 g calcium. Calculate the following.

(b) mass fraction of calcium and fluorine in fluorite
calcium




(c) mass percent of calcium and fluorine in fluorite
calcium

Answer 1

@SarahEZZMcK

Answer 2

@Rolltideroll @bibby @AngelWilliams16 @undeadknight26 @april115 @ParthKohli

Answer 3

Mass fraction of calcium is the mass of calcium to the mass of fluorite.

Answer 4

"to" meaning divided by.

Answer 5

so 1.51/ .75?- Calcium
and .75/1.51?-Fluorite?

Answer 6

Mass of calcium divided by the mass of fluorite = 1.51/2.26

Answer 7

Thanks and for the c?

Answer 8

Well, you probably know how to calculate the percentage.

Mass of calcium/Mass of the whole thing * 100

Answer 9

so just multiple the answer by 100?

Answer 10

Exactly.

Answer 11

thanks!

Answer 12

You're welcome!

Answer 13

lol ta~daa

Answer 14

but it keeps saying my answer for the percent is off by 10%...

Answer 15

ttyl, going to get lunch and im sorry

Answer 16

have fun!

Answer 17

What are you getting?

Answer 18

for calcium i am gettin 33.1858 and for fourite i am getting 66.814

Answer 19

You got the opposites.

Answer 20

im dumb. thanks dude :D