chemisty help

for the reaction shown, compute the theoretical yield of the product in grams for each of the following initial amounts of reactants.

Ti + 2F2 to make TiF4

There are 3 sub questions for this. Help me out with one, then I'll try to figure out the rest. thanks

a) 4.8g Ti; 3.2gF2

This is a limiting reagent problem. It is worked the same way as a regular stoichiometry problem is worked but with a twist or two.

Step1. Write the balanced equation.
Ti + 2F2 ==> TiF4

Step 2. Convert grams into mols.
3a. mols Ti = grams/atomic mass = 4.8/48 = 0.1 mol Ti

3b. mols F2 = 3.2g/38 = 0.084 mol F2.

Step 3. Using the coefficients in the balanced equation, convert mols in a and b of part 2 to mols of the product.
3a. convert mols Ti.
0.1 mol Ti x (1 mol TiF4/1 mol Ti) = 0.1 x 1/1 = 0.1 mol TiF4 produced.

3b. convert mols F2.
0.084 mol F2 x (1 mol TiF4/2 mols F2) = 0.084 x 1/2 = 0.0421 mol TiF4 produced.

3c. Obviously, both numbers can't be correct. The smaller of the two numbers of mols will be the correct one to use and that is the limiting reagent. Therefore, 0.0421 will be the mols TiF4 produced.

Step 4. Convert mols TiF4 to grams.
grams TiF4 = mols TiF4 x molar mass TiF4.

For a regular stoichiometry problem you won't have steps 2b or 3b or 3c. Everything else is the same.
You will need to go through this problem again because I just estimated the atomic masses of F2 and Ti. Post your work if you get stuck. Check my work. It's easy to make a typo when I'm in a hurry.

  1. 👍 0
  2. 👎 0
  3. 👁 1,581
  1. 8.1

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. Chemistry

    For the reaction shown, compute the theoretical yield of product (in grams) for each of the following initial amounts of reactants. 2Al(s) +3 Cl2(g) ---> 2 AlCl3(s) A. 2.5gAl , 2.5g Cl2 B. 7.7 g Al , 25.2 g Cl2 C. 0.240 g Al ,

    asked by anonymous on February 11, 2009
  2. Chemistry

    According to his prelaboratory theoretical yield calculations, a student's experiment should have produced 1.44 g of magnesium oxide. When he weighed his product after reaction, only 1.23 g of magnesium oxide was present. what is

    asked by Sia on February 16, 2009
  3. Chem Uni. Urgent!!!

    Have to find theoretical yield of recrystallization of acetanilide from water. 1 gram of crude product used (85% acetanilide, 14% Sodium chloride and 1% charcoal) I got 0.50 grams of purified product. With percent recovery of :

    asked by Joshua on February 3, 2015
  4. Chemistry

    When 4.0 mol of CCl4 reacts with an excess of HF, 3.0 mol of CCl2F2 (Freon) is obtained. The equation for the reaction is CCl4(l) + 2HF(g) --> CCl2F2(l) + 2HCl9g) State which of the statements are true about the reaction and make

    asked by Bree on September 15, 2010
  5. chemistry

    consider the reaction, 2Al(OH)3+3H2SO4---->Al2(SO4)3+6H2O a. Given that 152g of H2SO4 reacts with 234g of Al(OH)3 Howmany grams of Al2(SO4)3 will be theoretical generated? b. which of the reactants is the limiting reagent? c. If

    asked by lucky on October 8, 2011
  1. Chemistry

    Consider the following reaction: 2 SO2 (g) + O2 (g)----> 2 SO3 (g) If 285.3 mL of SO2 is allowed to react with 158.9 mL of O2 (both measured at 315 K and 50.0 mmHg), what is the limiting reactant and theoretical yield of SO3 in

    asked by Jarrod on October 27, 2010
  2. Chemistry

    For the following reaction, 3.93 grams of carbon tetrachloride are mixed with excess methane (CH4). The reaction yields 4.10 grams of dichloromethane (CH2Cl2). methane (CH4) (g) + carbon tetrachloride (g) dichloromethane (CH2Cl2)

    asked by Kaitlin on October 23, 2012
  3. Chemistry

    Manufacturing of Freon (CCl2F2): 2 HF(g) + CCl4(I) --> CCl2F2(g) + 2 HCl(g) Supplies on hand: 1.0kg HF and 1.0 kg CCl4. After the reaction was conducted, 0.44kg CCl2F2 was measured in the lab. 1) What is the theoretical yield of

    asked by Kathy on November 19, 2010
  4. DESPERATE NEED OF HELP--Chemistry, almost done

    Calculating Yield--need some help finishing problem. Almost done, just need help one ONE step, please help!!? Well we did a lab on limiting reagent/reactants. The balanced equation is Sr(NO3)2 + 2KIO3 --> Sr(IO3)2 + 2KNO3 Mols of

    asked by Angie on February 28, 2007
  5. Chemistry

    Aspirin is prepared by heating salicylic acid, C7H6O3, with acetic anhydride, C4H603. The other product produced is acetic acid, C2H402. C7H6O3+C4H6)3->C9H8O4+C2H4O2 What is the theoretical yield in grams of aspirin, C9H8O4, when

    asked by Lauren on November 6, 2012

You can view more similar questions or ask a new question.