chemistry

posted by .

for the reaction of 14.69 g of ethyl alcohol with 22.5 g of oxygen. which is the limiting reagent? how much CO2 will be produced? if 19.5 g of CO2 is actually produced, what is the percent yield? C2H5OH(1) + 3 O2 (g) - 2 CO2 (g) + 3H2O(g)

  • chemistry -

    how much toluene (C7H8) is need to make 47.3 (g) of TNT (C7H5N3O6) by the equation given below? C7H8+ HNO3 - C7H5N3O6 + H2O

  • chemistry -

    C2H5OH + 3O2 ==> 2CO2 + 3H2O
    mols ethyl alc = grams/molar mass = about 0.319
    mols O2 = 22.5/32 = about 0.7 but that's an estimate only.

    Using the coefficients in the balanced equation, convert mols ethyl alcohol to mols CO2. That's approximately 0.64
    Do the same for mols O2 to mols CO2. That's approximately 0.47. Of course these two answers are different which means one of them is wrong; the correct answer in limiting reagent problems is ALWAYS the smaller value and the limiting reagent is the one producint the smaller value of product. Then convert to grams CO2. g = mols x molar mass. This is the theoretical yield. Then
    %yield = (actual yield/theor yield)*100
    = ?
    Your second problem is the same thing EXCEPT it isn't a limiting reagent problem. That means you just go through the above process one time and there is no comparing to see which is the limiting reagent. The toluene is the limiting reagent in the problem.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. CHEM

    1. How many moles of water can be made from 4 moles of oxygen gas and 16 moles of hydrogen gas?
  2. chemistry

    last check: (c) A wine cooler contains 4.5% ethanol by mass. Assuming that only the alcohol burns in oxygen, how many grams of wine cooler need to be burned to produce 3.12 L of CO2 (d = 1.80 g/L at 25°C, 1 atm pressure) at the conditions …
  3. Chemistry

    NaHCO3 + HCl = NaCl + H2O + CO2 The HCl in the reaction is 2 molar what i need it to figure out how much CO2 if produced when 10g of each substance is mixed. And the limmiting reagent and any information that can be produced around …
  4. Chemistry

    Methyl alcohol (wood alcohol), CH3OH, is produced via the reaction CO(g) + 2 H2(g) à CH3OH(l) A mixture of 1.20 g H2(g) and 7.45 g CO(g) are allowed to react. 4 points (a) Which reagent is the limiting reagent?
  5. chemistry

    Acetylene gas, c2h2, burns in oxygen to produce carbon dioxide and water. If 61.4 g of co2 are produced when 22.7g c2h2 react with sufficient oxygen, what is the percent yield for the reaction?
  6. chemistrt

    17.8 g of CH4 react with 55.4 g of O2 to form CO2 and H20 identify the limiting and excess reagent. what is the mass of CO2 produced?
  7. chem

    The reaction: 2C2H2+5O2->5O2->4CO2+2H2O is performed by mixing 175 grams of C2H2 and 175 grams of O2 to produce 127 grams of CO2 1)Limiting reagent 2)Theretical yeield of CO2 3)Percent yield of CO2
  8. Chemistry

    C2H6(g) + O2(g) CO2(g) + H2O(g) (a) Consider the unbalanced equation above. What is the maximum mass of CO2 that can be produced when 21.0 g of C2H6 and 38.5 g O2 react?
  9. Chemistry

    If 116g of butane burns in presence of 320g of oxygen, how much carbon dioxide will be produced?
  10. chemistry

    2.2. Billions of kilograms of urea, are produced annually for use as a fertilizer. The reaction used is given below. NH3(g) + CO2(g) → CO(NH2)2(s) + H2O(l) The typical starting reaction mixture has a 3:1 mole ratio of NH3 to …

More Similar Questions