Jump to content

Search the Community

Showing results for tags 'quantitative chemistry'.



More search options

  • Search By Tags

    Type tags separated by commas.
  • Search By Author

Content Type


Forums

  • General
    • General Discussion
    • Debate and Discussion
    • Literature
    • Chat
    • University
  • International Baccalaureate
    • General IB Discussion
    • Languages A1/A Literature
    • Languages A2, B and Ab Initio
    • Economics and Business & Management
    • History
    • Psychology
    • Experimental Sciences
    • Mathematics
    • The Arts
    • Other Subjects
    • Extended Essay
    • Theory of Knowledge
    • Creativity, Action, Service
    • Exam Discussion
    • Pre-IB/MYP
  • About
    • About Our Forum

Categories

  • General IB Downloads
    • IB Syllabus & Data Booklets
    • IB Diploma Statistics
    • Other IBO documents
  • Languages A
    • English A1 Pre-2013
    • Other Languages A1 Pre-2013
    • Language A2 Pre-2013
    • English A Post-2013
    • Other A languages Post-2013
  • Languages B & Ab Initio
    • Language B and Ab Initio
  • Business and Management
    • Notes
    • Sample Internal Assessments
  • Economics
    • Notes
    • Sample Internal Assessments
  • Geography
  • History
    • Notes
    • Past paper responses
    • Sample essays
    • Sample Internal Assessments
  • Philosophy
  • Psychology
    • Exam Revision
    • Internal Assessments
    • Old Syllabus
  • Science
    • Group 4 Project
    • Biology
    • Chemistry
    • Physics
    • Environmental Systems and Societies
  • Mathematics
    • Notes
    • Sample HL Internal Assessments
    • Sample SL Internal Assessments
    • Sample Maths Studies Internal Assessments
  • Arts
  • Other Subjects
  • Theory of Knowledge
    • Guidelines and Notes
    • Sample TOK essays
    • Presentation examples and information
  • Extended Essays
    • Biology & Environmental Systems
    • Chemistry
    • Economics and Business & Management
    • Group 6
    • History
    • Language A1
    • Language B
    • Mathematics
    • Other Group 3 subjects
    • Physics
    • Psychology
  • University Application Essays and PS
  • Extracurricular
  • Pre-IB/MYP

Find results in...

Find results that contain...


Date Created

  • Start

    End


Last Updated

  • Start

    End


Filter by number of...

Joined

  • Start

    End


Group


Skype


Twitter


Exams

Found 9 results

  1. daniaridha

    HL/SL Chemistry Question

    Hi, I would really appreciate a full explanation of the process of the following question Chlorine gas is produced by the reaction hydrochloric acid, and the oxidizing agent manganese (IV) oxide, MnO2: MnO2+ 4HCl = MnCl2 + Cl2 + 2H2O At 273.15 K and 100 Pa, 58.34 g of HCl reacts with 0.35 mol of MnO2 to produce 7.056 dm^-3 of chlorine gas. Deduce the limiting reagent, and calculate the theoretical yield of chlorine.
  2. daniaridha

    Stochiometry Question (PLEASE HELP!)

    I would REALLY appreciate some full explanation for this question. The thermal decomposition of sodium hydrogen carbonate, NaHCo3, results in a 73.8% yield of sodium carbonate, Na2Co3. 2NaHCo3=Na2Co3+H2O+Co2 If a 1.68 g sample of sodium hydrogen carbonate is heated, calculate the mass, in g, of sodium carbonate produced.
  3. daniaridha

    Stochiometry Question (PLEASE HELP!)

    I would REALLY appreciate some full explanation for this question. The thermal decomposition of sodium hydrogen carbonate, NaHCo3, results in a 73.8% yield of sodium carbonate, Na2Co3. 2NaHCo3=Na2Co3+H2O+Co2 If a 1.68 g sample of sodium hydrogen carbonate is heated, calculate the mass, in g, of sodium carbonate produced.
  4. daniaridha

    Stochiometry Question

    A solution of 155 g of potassium iodide, KI is added to a solution of 175 g of nitric acid, HNO3. The acid acts as an oxidizing agent. 6KI + 8HNO3= 6KNO3+2NO+3I2+4H2O A) Deduce which reagent is in excess. B) Determine how many grams of this reactant will remain unreacted. C) Determine how many grams of nitrogen monoxide, NO will be produced.
  5. Hi, I would really appreciate some clarification on whether or not I executed the correct process for the following question: Ethyne, C2H2, reacts with oxygen according to 2C2H2+5O2=4CO2+2H2O. What volume of oxygen, in dm3, reacts with 0.40 dm3 of C2H2? Initially, I recognized the ratio of ethyne to oxygen to be 2:5. Then, I cross multiplied 2/5=0.40/x. I received the answer as 1 dm3. Is this correct?
  6. Hi everyone, I would really appreciate some help in solving the following question. I did the process but I wanted to ensure that I achieved the correct answer. Thank you Two aqueous solutions, one containing 5.3 g of sodium carbonate and the other 7.0 g of calcium chloride, are mixed together. A precipitation reaction occurs: Na2CO3+CaCl2=2NaCl+CaCO3 Determine the limiting reagent and the mass, in g, of precipitate formed (theoretical yield).
  7. If you could please help explain the process of how to solve this question, that would be greatly appreciated 1. Butane lighters work by the release and combustion of pressurized butane. 2C4H10+13O2=8CO2+10H2O Determine the limiting reagent in the following reaction. a) 20 molecules of C4H10 and 100 molecules of O2.
  8. daniaridha

    SL/HL Chemistry Question

    If someone could please help me with the following question, that would be great You don't necessarily need to tell me the answer, if you could just explain the process it would be very helpful. Thanks! Silicon tetrafluoride (SiF4) is produced from the reaction of silicon dioxide (SiO2) and hydrofluoric acid (HF) with water as the other product. Write the chemical equation for the above reaction (I already did this, and I got SiO2+4HF=SiF4+2H2O). Please tell me if this is wrong). What mass of silicon tetrafluoride can be produce from 15.00 g of silicon dioxide in 15.00 g of hydrofluoric acid?
  9. abdelrahman

    Help me understand worked example

    help me understand this worked example in the book as i am not able to understand the transformation from grams to the normal formula. What is the maximum volume of ammonia gas ( measured ar 273 K and 10.1 *10^5 Pa) that could be obtained from the reaction between 10g of hydrogen and 30g of nitrogen? if the actual amount of ammonia obtained is 7.05 dm^3 calculate the percentage yield for the reaction. Step 1 Write the quation for the reaction (assume the reaction goes to completion to give the maximum amount of products.) 3H2(g) + N2(g)= 2NH3(g) ( i dont get this part how did it transform from the 30g N and 10g H to this formula with these coeffecients) I would really appreciate help in this as i dont get it and i am self studying the whole ib chemistry HL course. thanks
×

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.