Question

Gram molecular wieght of HC2H302: 1 mole = __________ g

C 12.01 g/mol
H 1.01 g/mol
0 16.00 g/mol

Answer 1

Just add up the g/mol of each element. For example, there are 4 moles of hydrogen in the compounds so 1.01g/mol * 4. Afterwards, add the numbers up from C, H, and O.

Answer 2

so do we find te molecular weight os HC2H302 first

Answer 3

i am kind of new to chemistry, so can you show me

Answer 4

It's not that you find the molecular weight. That's the only thing that it's asking for you. Find the weight per element and then add them up.

Answer 5

4.04

Answer 6

for hydrogen

Answer 7

Multiply the unit weight of the element by how many times it appears in the compound. And yes.

Answer 8

there are 2 moles of carbon right

Answer 9

can you provide me steps please on how to do this ang guide me through it.

Answer 10

There are 2 moles of carbon in the compounds, yes. Now multiply it by the unit weight.

Answer 11

The product is the weight of 2 moles of carbon.

Answer 12

is it 12.01 * 2

Answer 13

mhmm. now do it for O by yourself.

Answer 14

there are 2 moles of oxygen right

Answer 15

so 16.00 *2 = 32

Answer 16

right

Answer 17

Yep. Now add all of the values together.

Answer 18

60.06

Answer 19

right

Answer 20

Yes.

Answer 21

Don't forget the unit.

Answer 22

is it 60.06 g/mol