Question

chemistry

Answer 1

im not sure how to calculate CH

Answer 2

@vocaloid

Answer 3

C and H are just carbon and hydrogen

(CH3CH2)2

start from the inside and work your way out

CH3 = 1 carbon, 3 hydrogens
CH2 = 1 carbon, 2 hydrogens
add everything up

then multiply by 2 since you have that 2 outside the parentheses

Answer 4

oh, after that, add O since there's an Oxygen at the end

Answer 5

26.08?

Answer 6

should be much more than that

(CH3CH2)2 O

inside the parenthese are 2 carbons, 5 hydrogens

2(12) + 5(1.007) = 29.035

double this, since there's a 2 outside the parentheses ---> 2*29.035 = 58.07

add oxygen

58.07 + 15.999 = 74.07

Answer 7

2 times 12?

Answer 8

never mind

Answer 9

is 1.008*5 5.04?

Answer 10

@vocaloid

Answer 11

yes

I just did all the calculations in one line to save space

Answer 12

thanks i figured out my mistake

Answer 13

i got 74.123

Answer 14

yeah just be sure to round to 74.12 since they only ask for 2 places

Answer 15

but you got 74.07

Answer 16

mine's a little off because I used C = 12 instead of C = 12.0107 which is a bit more accurate, so yours is closer to the actual value