Question

The volume of a single molecule of water is 2.99x10^-23 mL. For a sample of gaseous water at 1.00 atm and 150 *C, what fraction of the container's volume is occupied by the molecules themselves?

Answer 1

@Abhisar

Answer 2

@nincompoop

Answer 3

formula

Answer 4

nope

Answer 5

try pv=nrt

Answer 6

i said pv=nrt lol

Answer 7

oh laughing out loud

Answer 8

so do we need mols?

Answer 9

wait a min...

Answer 10

1 mole H2O = 18.0 g = 18.0 mL
1 mole H2O = 6.022x10^23 molecules
6.022x10^23 molecules x 2.99x10^-23 mL

Answer 11

V = nRT/P = 1 mole x 0.0821 x 423.15 / 1.00 atm

Answer 12

um that isn't one of the choices. This is a multiple choice question

Answer 13

uh I didn't give you the answer
these are the solutions laughing out loud

Answer 14

1 mol H2O = 18 g = 18 mL ?

Answer 15

ya

Answer 16

http://calculator-converter.com/converter_g_to_ml_grams_to_milliliters_calculator.php

Answer 17

mL = g

Answer 18

you can prove it using volume, density and mass

Answer 19

I am doubting this because I was taking grams of a solution today and it didn't equal the same as mL

Answer 20

how? displacement?

Answer 21

well since mL=g I can find the mols of H2O and then apply the pv=nrt equation

Answer 22

yes

Answer 23

okay thanks. Are yo familiar with oxidation reduction?

Answer 24

yes

Answer 25

read up though, because it gets a little complicated

Answer 26

http://www.finedrafts.com/files/CUNY/chemistry/General/Zumdahl%20etal/zuhmdahl%209e/

Answer 27

i can find the O.N. and determine which compound is the OA or RA, but I can't or have a hard time balancing the equation

Answer 28

? what are those?

Answer 29

oxidation number?

Answer 30

yeah oxidation number

Answer 31

redox is taught in gen chem, there's no need for ochem for it and yes I am taking ochem

Answer 32

oh i thought they taught redox in o chem

Answer 33

it's the same principle and rule of thumb

Answer 34

no redox is fundamental in acids and bases, electrolytes, and half-reaction to galvanic cells (battery)

Answer 35

my final answer is 5.76x10^-23

Answer 36

are you in ochem? because the question you asked is not ochem related

Answer 37

no gen chem2

Answer 38

did you divide mL by 1000 to convert to liter?

Answer 39

no... no i didn't lol

Answer 40

5.76x10^-26

Answer 41

that is fine, as long as you are consistent with units
18.0 mL / 3.472x10^4 mL

Answer 42

can you help me with one more question

Answer 43

do you understand what is going on though?

Answer 44

Mercury is 13.6 times as dense as liquid water. What would be the reading of a water-filled barometer at normal atmospheric pressure, 760. mmHg?

Answer 45

I need to use the same units.

Answer 46

L=g and mL=mg

Answer 47

well not only that, I mean how to approach the question

Answer 48

http://www.chemteam.info/Solutions/Mole-Fraction.html

Answer 49

I knew I was suppose to use pv=nrt, but I was having a hard time figuring out how to obtain mols of H2O. I didn't know the L=g

Answer 50

it is another way of calculating concentration

Answer 51

Okay I can barely keep my eyes open... thanks for you rhelp

Answer 52

I will work out the other question later

Answer 53

@nincompoop @raffle_snaffle pls help http://openstudy.com/study#/updates/53b659d9e4b072c759d926f0