Chemistry help help me!!!

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).
TiO2(s) + C(s) + 2 Cl2(g) TiCl4(s) + CO2(g)
(a) What mass of Cl2 gas is needed to react with 2.01 mol TiO2?
g

(b) What mass of C is needed to react with 2.01 mol of TiO2?
g

(c) What is the mass of all the products formed by reaction with 2.01 mol of TiO2?
g

a) 2.01 mol TiO2 requires 4.02 moles Cl2 corresponding to 4.02 moles x 70.8 g/mole = 284.6 g Cl2

b) 2.01 moles TiO2 react with 2.01 g C corresponding to 2.01 moles x 12 g/mole = 24.12 g C

c) 2.01 moles TiO2 lead to the formation of 2.01 moles of TiCl4 and 2.01 moles CO2, corresponding respectively to: 2.01 moles x 189.5 g/mole = 380.9 g TiCl4 and 2.01 moles x 44 g/mole =88.dd g CO2

a. From the chemical equation, 1 mole of TiO2 reacts with 2 mols of chlorine gas.
so if TiO2 has 2.01 mole then chlorine gas has 4.02 mole (2.01 x 2)

b. 1 mole of TiO2 reacts with 1 mole of carbon
so if TiO2 has 2.01 mole then carbon has also 2.01 mole

to get mass; mole x Ar/Mr, and carbon has a relative atomis mass, Ar, of 12
so, 2.01 x 12=24.12g

c. 1 mole of TiCl4 and 1 mole of CO2 for product. (the ratio)
since TiO2 has ratio of one mole also and have 2.01 mol , then 2.01 mole of TiCL4 and 2.01
mole of CO2 formed.

so, for mass of TiCl4, 2.01 x 189.87=381.6g

for mass of CO2, 2.01x 44=88.44g

hence, total mass of product, 88.44 + 381.6=470.04g

(the 189.87 is the Mr of TiCl4 and 88.44 is the Mr for CO2)

hope this helps.