chemistry

if 50.0 g of KCl reacts with 50.0 g of O2 to produce KClO3 according to the equation, how many grams of KClO3 will be formed?

  1. 👍
  2. 👎
  3. 👁
  1. 2K Cl + 3O2 --> 2KClO3
    KCl = 39+ 35.5 = 74.5 g/mol
    O = 16 g/mol so O2 is 32 g/mol
    I need 3 mols of O2 for every 2 mols of KCl
    50 g KCl = 50/74.5 = .671 mols of KCl
    so need .671 * 3/2 = 1.007 mols of O2 = 32 g
    SO I have MORE O2 than I need, just use the .671 mols of KCl, limiting reagent
    now
    I get 1 mol KClO3 for every mol of KCl
    so I get .671 mols of KClO3
    74.5 + 3*16 = 122.5 grams/mol of KClO3
    .671 * 122.5 = 2.2 grams

    1. 👍
    2. 👎
    👤
    Damon

Respond to this Question

First Name

Your Response

Similar Questions

  1. Chemistry

    Balance KCLO3 ---> KCl + O2

  2. chem

    3.0 mol sample of KClO3 was decomposed according to the equation 2KClO3 = 2KCl + 3 O2 How many moles of O2 are formed assuming 100% yield? is it 3 moles? I don't want to work through the details of this problem completely. Tell me

  3. Chemistry

    A 2.559 9 pellet containing NaCl and KCl is dissolved in water. A silver nitrate solution is mixed with water containing the pellet, and a precipitate forms. The precipitate is separated and dried and found to have a mass of 5.112

  4. Chemistry

    2KClO3 --> 2KCl + 3O2 What mass of O2 can be made from heating 125 g of KClO3? I know that the answer is 49 g O2 but I keep getting a completely different answer, can anyone show me what I'm doing wrong? 125g KClO3 x (2 mol KClO3/

  1. Science

    Which statement correctly describes how hydrolysis causes chemical weathering? A. Water reacts with carbon dioxide to produce clay, weakening the rock. B. Water reacts with carbon dioxide to produce carbonic acid, weakening the

  2. chemistry proofread

    write the chemical equations for the following sentences a) Aluminum reacts with oxygen to produce aluminum oxide I put Al + O2 ----------> 2Al2O3 b) Phosphoric acid, H3PO4, is produced through the reaction between

  3. chemist ry

    if 500 g of KCLO3 decomposes and produces 303 g of KCL, how many grams of O2 are produced?

  4. Chemistry Balancing Equations

    Can you please tell me if these are correct? 1. Sodium Hydrogen Sulfite reacts with hydrochloric acid to produce sulfur dioxide gas, water and sodium chloride NaHSO3 + HCl -----> SO2 + H2O + NaCl 2. Sodium nitrate reacts with

  1. Chemistry

    39.8g of a mixture of potassium chloride, KCl, and potassium trioxochlorate(V), KClO3, were heated to a constant mass. If the residue weighed 28.9g, what was the percentage mass of the potassium chloride in the mixture? ( K = 39,

  2. Chemistry

    KClO3 = KClO4 + KCl What is the conversion factor to convert between moles of potassium chlorite and moles of potassium perchlorate?

  3. chemistry

    . A 0.428-gram sample of a mixture of the solids, KCl and KClO3, is heated. If 80.7 mL of oxygen gas is collected over water at 18.0 oC and 100.8 kPa, calculate the mass percentage of KClO3 in the mixture. (PH2O at 18.0 oC = 15.5

  4. Chemistry

    Write a balanced equation using the correct formulas and include conditions (s,l,g or aq) for each of the following reactions. 1)Carbon monoxide gas reacts oxygen gas to produce carbon dioxide gas. Express your answer as a

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