An unknown compound contains only c, h, and o. combustion of 2.90 g of this compound produced 6.59 g of co2 and 2.70 g of h2o.

Given that :

Mass of = 6.59 g

Mass of = 2.7 g

Total mass of compound = 2.9 g

Explanation :

From given data,

Mass of C in 6.59 g =

Mass of H in 2.7 g   =

Mass of O = 2.9-(0.0414+0.0412) = 2.82 g

Moles of each atoms

C =

H =

O =

Simpler ratio of moles for  each atom

C =

H =

O =

According to above given values the possible formula for compound will be

the answer

explanation:

the capillary tube was too close to the bottom of the beaker.

the ruler may have moved.

water got into the capillary tube.

the temperature was not allowed to equilibrate in the 2-4 minutes.

oxygen, selenium, tellurium, and polonium.

they're all from the same group as sulfur (group 16).