contestada

8.50g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have a molecular molar mass of 176./gmol, is burned completely in excess oxygen, and the mass of the products carefully measured:

Product mass
Carbon dioxide 12.75g
Water 3.48g

Use this information to find the molecular formula of X.

Respuesta :

jamesesther1234

Answer:

Molecular formula = [tex]C_{3} H_{4} O_{8}[/tex]

Explanation:

CO2 -

12.75g / 44g/mol = 0.29

H2O -

3.48g/18g/mol = 0.19

(dividing through by the smallest mole)

Ratio of CO2 to H2O = 1.5 : 1

[tex][(CO_{2} )_{1.5} + (H_{2} O)_{1}]x[/tex] = 176

[12 × 1.5 + 16×2×1.5 + 1×2 + 16)x = 176

(18 + 48 + 2 + 16)x = 176

x = 176/84 = 2

⇒ Molecular formula = [tex]C_{3} H_{4} O_{8}[/tex]

Check: Molar mass of C3H4O8 = 176g/mol.

A 8.05 grams of a certain compound is known as to be made by the carbon and hydrogen have more mass of 176./g mol.

  • The compound X is carbon, hydrogen, and Oxygen which has a molecular M that is burned down, and measured as water and carbon.
  • They are burned completely and exceeds oxygen and mass is produced and measured.
  • Molecular formula =  CO2-  12.75g / 44g/mol = 0.29
  • H2O - 3.48g/18g/mol = 0.19.

Learn more about Compound X, known to be made of carbon.

brainly.com/question/20984525.

Otras preguntas