Question

5. Tin's actual atomic radius is 140 pm. Use the math equation below to determine the percent error of your estimated value.
Percent error = fraction: | actual value minus experimental (estimated value | over actual value × 100

Answer 1

@DLS @sweetburger

Answer 2

@FriedRice @Hero

Answer 3

what did you get for your experimental?

Answer 4

148

Answer 5

when you subtract you have to do it by hand

Answer 6

what is 148 - 140?

Answer 7

8

Answer 8

well it would be 8 then what would 8/140 *100 be??

Answer 9

ohh. okay thank you!

Answer 10

calculate the mass in grams in 10 moles of H2O

Answer 11

solve my question please

Answer 12

i will try

Answer 13

oky

Answer 14

any body here

Answer 15

yes

Answer 16

Well, H2O is 18 grams per mole

Answer 17

question answer me

Answer 18

i guess if you multiply it by 10 like 10X18. idk

Answer 19

chemical combination for solve my question

Answer 20

i don't know what that is i really sorry

Answer 21

ok thanx

Answer 22

calculate the number of the moles in 100gram H2O

Answer 23

maybe 100X18

Answer 24

11800

Answer 25

it is write answer

Answer 26

right*...

Answer 27

ok thanx

Answer 28

well are you asking what the mole of grams is?

Answer 29

yes

Answer 30

define mole in your own words

Answer 31

nincompoop solve my question ok calculate the molecular mass abd molar mass of H2O

Answer 32

did you type "calculate the number of the moles in 100gram H2O"?

Answer 33

the trouble is that you don't know what a mole is and until you figure out, you won't be able to move on

Answer 34

yes

Answer 35

well you got to put gram into moles

Answer 36

1 mole 18gram

Answer 37

right answer

Answer 38

Ok bye

Answer 39

just put it in your damn calculator kid

Answer 40

\[100. g_{H2O} \times \frac{ 1.00 mole_{H2O} }{ 18.0 g_{H2O} }\]
notice how grams gets cancelled out and you have mole left as a unit?

Answer 41

yeah what nincompoop said exactly just put that in your fancy scientific calculator