Thursday

August 28, 2014

August 28, 2014

Posted by **LC** on Monday, October 29, 2012 at 11:49pm.

x + y = 30cm^3

x + 2y = 61.5cm^3

i.e

2x + 2y =60cm^3

x + 2y = 61.5cm^3

therefore

x= -1.5cm^3(volume of methane)

and

y= {61.5-(-1.5)}/2= 31.5cm^3(volume of ethane)

However my teacher said the volume i got for ethane is wrong, because my second equation(x+2y) should not be equal to 61.5cm^3.... so this is why I am lost. I tried to follow your previous example though. So I need your help again.

As a hint she she gave us this...

61.5cm^3- (A + 2B)= 100- (2A+ 3 and a 1/2B)...I have no idea what this is.

**Related Questions**

a - A rectangle is 3times as long as it is wide the perimeter is 60cm. Find the ...

physics - An object 5cm is placed 30cm in front of a concave mirror.The image ...

CHEMISTRY: URGENT - 30cm^3 of a mixture of methane and ethane were mixed with ...

Physics - A rectangular block of wood is 40cm wide, 60cm long and 30cm deep. If ...

Advanced chem - A rectangular block of wood is 40cm wide, 60cm long and 30cm ...

math - micheal drew a triangle with the sides measuring 12.5cm,30cm,32.5cm. ...

Maths urgent help needed! - A rectangular tank measures 60cm by 40cm by 30cm. It...

Physics - A 492g oscillator has a speed of 99.5cm/s when its displacement is 3....

Physics - A 395cm oscillator has a speed of 104.5cm/s when its displacement is 2...

Chemistry(Please help, thank you) - I have to calculate the concentration of I2...