An organic compound has an empirical formula CH₂O and vapour density of 45.
What is the molecular formula?
[C = 12, H = 1, O = 16]

aremz

11 years ago

relative molecular mass=vapour density *2

;rmm=45*2

=90

(CH2O)=90

(12+2+16)n=45

(30)n=90

n=90/30

n=3

the molecular formula=(C3H6O3)

AKPEBOY16

9 years ago

relative molecular mass=vapour density*2;

rmm=45*2=90

(CH2O)=90

(12+2+16)n=90

(30)n=90

=90/30n=

3. the molecular formula=(C3H6O3)

tyjesma

11 years ago

Thanks man

Odinakaprosper

1 year ago

Nice

Mary6868

4 years ago

i was comfuse at first,but all thanks to this app.the answer is correct

Charlieboi200

9 years ago

sharp

azekah

1 year ago

note rmm=2 times vapour density

lamhace

8 years ago

sum of CH2O=30which =vapour density45....den,45/30=1.5......den multiply 1.5by smallest no. dat givesit a whole no. example 1.5*2=3......den apply 3 to CH20 as in 3*C, 3*H2, 3*O.....Den u get ur ansa azzin C3H603

mmesoma120

3 months ago

I don't understand this solving