Titanium is a transition metal used in many alloys because it is extremely strong and lightweight. titanium tetrachloride (ticl4) is extracted from titanium oxide using chlorine and coke (carbon). if you begin with 1.25 mol tio2, what mass of cl2 gas is needed

The correct answer is 175 grams of Chlorine is required.  

Explanation:

The reaction for the given case is:

TiO₂ (1 mole)  + 2Cl₂ (2 mole) → TiCl₄ + O₂

From the reaction, it can be observed that 1 mole of TiO₂ reacts with 2 mole of Cl₂ to produce 1 mole of TiCl₄.

Therefore, 1.25 mole of TiO₂ will react with 2.5 mole of Cl₂ to produce 1 mole of TiCl₄.

The molecular weight of 1 mole of Cl₂ is 70 g

Thus, 2.5 mole of Cl₂ = 70 × 2.5 = 175 g

Therefore, for complete reaction of 1.25 mole of TiO₂, 175 g of Cl₂ will be needed.

definition

                    entropy is a measure of the randomness or the extent of disorder of a chemical process.

                      enthalpy is a measure of the heat change of a reaction occurring at a constant pressure.

measurement units:

                        entropy is measured in joule per kelvin (jk⁻¹)   whereas enthalpy is measured in joule per mole (jmol⁻¹)

requirements:

                            entropy has no requirements or limits, and its change is measured by the division between the heat change of the chemical process and the temperature.

                              in contrast, enthalpy can only be related to the heat change of the reaction under standard conditions.