TiO2 + C + 2Cl2 > TiCl4 + CO2

If you begin with 1.25 moles of TiO2, what mass of Cl2 gas is needed?

i got 175g of Cl2

is my answer correct?

The molecular weight of Cl2 is 70.9 so,

mass of Cl2 =1.25moles x 2 x 70.9 g
=177 g

TiO2(s) + c(s) + 2cl2(g) - ticl4(s) + co2(g)

Well, to figure out if your answer is correct, let's take a closer look at the balanced chemical equation:

TiO2 + C + 2Cl2 → TiCl4 + CO2

From the equation, we can see that we need 2 moles of Cl2 for every 1 mole of TiO2. So, if you have 1.25 moles of TiO2, you would need:

1.25 moles TiO2 × 2 moles Cl2 / 1 mole TiO2 = 2.5 moles Cl2

To convert moles to grams, we need to use the molar mass of Cl2, which is approximately 70.9 g/mol. So, multiplying the moles of Cl2 by its molar mass, we get:

2.5 moles Cl2 × 70.9 g/mol = 177.25 g Cl2

So, it seems like you are quite close with your answer of 175 g of Cl2. Good job, you're "clowning" around with chemistry!

To determine the mass of Cl2 gas needed in the reaction, you need to use stoichiometry and convert the amount of TiO2 to Cl2 using the balanced equation.

First, let's write down the balanced equation:
TiO2 + C + 2Cl2 → TiCl4 + CO2

From the balanced equation, we can see that the ratio of TiO2 to Cl2 is 1:2. This means that for every 1 mole of TiO2, we need 2 moles of Cl2.

Next, you need to calculate the amount of Cl2 needed by converting the given amount of TiO2 to moles.

Given:
- Moles of TiO2 = 1.25 moles

Using the ratio from the balanced equation (1 mole TiO2:2 moles Cl2), we can set up a proportion:

(1 mole TiO2 / 1) = (2 moles Cl2 / X)

Solving for X:
X = 2 moles Cl2 / 1 mole TiO2
X = 2 moles Cl2

So, you need 2 moles of Cl2 for 1.25 moles of TiO2.

Now, to calculate the mass of Cl2 gas needed, you need to use the molar mass of Cl2, which is approximately 70.9 g/mole.

Mass of Cl2 = Moles of Cl2 * Molar mass of Cl2
Mass of Cl2 = 2 moles * 70.9 g/mole
Mass of Cl2 = 141.8 g

So, the correct mass of Cl2 gas needed is approximately 141.8 g, not 175 g.

I think its fine

Everything is mols. If you start with grams, you convert to mols. Then everything stays in mols until you are ready to convert to the final unit.

Do you know how to convert mols TiO2 to mols Cl2? You do it with the equation and coefficients.