Chemistry research homework help

Chemistry research homework help
topic: Chemistry research homework help
1. With the aid of the following balanced equation and molar masses (MM), determine the answer for the following question.

2 C7H14 + 21 O2 → 14 CO2 + 14 H2O

MM 98.2 32.0 44.0 18.0

How many mol of O2 are required to react with 19.2 g of C7H14?

2. Balance the following chemical equation by placing a coefficient (including 1) in each answer box that is in front of each reactant and each product.

While coefficients that are equal to 1 are not placed in front of either a reactant or product, you MUST include any coefficient that is equal to 1 in this problem.
H2SO4 + Re(OH)7 → Re2(SO4)7 + H2O

3. Balance the following chemical equation by placing a coefficient (including 1) in each answer box that is in front of each reactant and each product.

While coefficients that are equal to 1 are not placed in front of either a reactant or product, you MUST include any coefficient that is equal to 1 in this problem.
______C9H16_____ + O2 →______ CO2 +_______ H2O

4. Balance the following chemical equation by placing a coefficient (including 1) in each answer box that is in front of each reactant and each product.

While coefficients that are equal to 1 are not placed in front of either a reactant or product, you MUST include any coefficient that is equal to 1 in this problem.
________V +______ O2 → ________ V2O5

5. With the aid of the following balanced equation and molar masses (MM), determine the answer for the following question.

2 C6H14 + 19 O2 → 12 CO2 + 14 H2O

MM 86.2 32.0 44.0 18.0

If 0.441 g of C6H14 are reacted with excess O2, what is the theoretical yield (in mL) of CO2. At the temperature and pressure at which this reaction was conducted the density of CO2 is equal to 1.77 g/L.?

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rubric for Chemistry research homework help

  A (4) B (3) C (2) D/F (1/0)
Focus: Purpose Purpose is clear Shows awareness of purpose Shows limited awareness of purpose No awareness
Main idea Clearly presents a There is a main idea Vague sense of a No main idea
  main idea and supported throughout main idea, weakly  
  supports it most of the paper. supported  
  throughout the   throughout the  
  paper.   paper.  
Organization: Well-planned and Good overall There is a sense of No sense of
Overall well-thought out. organization, includes organization, organization
  Includes title, the main although some of the  
  introduction, organizational tools. organizational tools  
  statement of main   are used weakly or  
  idea, transitions and   missing  
  conclusion.      
Organization: All paragraphs have Most paragraphs have Some paragraphs Para. lack clear ideas
Paragraphs clear ideas, are clear ideas, are have clear ideas,  
  supported with supported with some support from  
  examples and have examples and have examples may be  
  smooth transitions. transitions. missing and  
      transitions are weak.  
Content Exceptionally well- Well-presented and Content is sound and Content is not sound
  presented and argued; ideas are solid; ideas are  
  argued; ideas are detailed, developed present but not  
  detailed, well- and supported with particularly  
  developed, evidence and details, developed or  
  supported with mostly specific. supported; some  
  specific evidence &   evidence, but  
  facts, as well as   usually of a  
  examples and   generalized nature.  
  specific details.      
Research (if Sources are Sources are well Sources support The paper does not
assignment exceptionally well- integrated and some claims made in use adequate
includes a integrated and they support the paper’s the paper, but might research or if it does,
research support claims claims. There may be not be integrated the sources are not
component) argued in the paper occasional errors, but well within the integrated well.
  very effectively. the sources and paper’s argument. They are not cited
  Quotations and Works Cited conform There may be a few correctly according
  Works Cited to MLA style sheet. errors in MLA to MLA style, nor
  conform to MLA   style.. listed correctly on
  style sheet.     the Works Cited
        page.
Style: Sentence Sentences are clear Sentences are clear Sentences are Sentences aren’t
structure and varied in but may lack generally clear but clear
  pattern, from simple variation; a few may may have awkward  
  to complex, with be awkward and there structure or unclear  
  excellent use of may be a few content; there may  
  punctuation. punctuation errors. be patterns of  

 

 
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