Write the molecular formula for acetaldehyde? enter the elements in the order cho.

The chemical formula which shows the number of atoms for every element present in the molecule is said to be molecular formula.

Acetaldehyde is an organic compound having functional group. It is also called as ethanal.

Now, ethanal consist of one carbon atom which is linked with  three hydrogen atoms and it is linked with one functional group i.e. aldehyde.

Thus, molecular formula of acetaldehyde is .

"you start with 15.67 g mgco3-xh2o, when heated and all the water is removed, you are left with 7.58 g mgco3 only.

therefore, you had 15.67 - 7.58 = 8.09g h2o  

moles of each :

7.58g mgco3 = ? moles = 7.58g / 83.4g/mole = 0.09moles  

8 09g h2o = ? moles = 8.09g / 18g/mole = 0.44moles  

molar ratio between the two by dividing both numbers by the smallest number :

0.09 / 0.09 = 1  

0.44 / 0.09 = 4.8  

mgco3-5h2o"