Dariana Deducing a rate law from the change in concentration over time A chemistry graduate student is studying the rate of this reaction: H2CO, (ag) H20 (ag)+Co, (ag) She fills a reaction vessel with HCO2 and measures its concentration as the reaction proceeds: H,Co3] time minutes) 0 0.800 M 10. 0.377 M 20. 0.246 M 30 0.183 M 40. 0.146 M Use this data to answer the following questions. rate k Write the rate law for this reaction. Calculate the value of the rate constant k. ? X Round your answer to 2 significant digits. Also be sure your answer has the correct unit symbol. Dariana Using an integrated rate law for a first-order reaction Consider this reaction 2HI (g)H (g)+I, (e) At a certain temperature it obeys this rate law. rate (0.00981 s[HI] Suppose a vessel contains HI at a concentration of 0.460 M. Calculate the concentration of HI in the vessel 65.0 seconds later. You may assume no other reaction is important. Round your answer to 2 significant digits ? X

Question
Dariana
Deducing a rate law from the change in concentration over time
A chemistry graduate student is studying the rate of this reaction:
H2CO, (ag) H20 (ag)+Co, (ag)
She fills a reaction vessel with HCO2 and measures its concentration as the reaction proceeds:
H,Co3]
time
minutes)
0
0.800 M
10.
0.377 M
20.
0.246 M
30
0.183 M
40.
0.146 M
Use this data to answer the following questions.
rate k
Write the rate law for this reaction.
Calculate the value of the rate constant k.
?
X
Round your answer to 2 significant digits. Also be
sure your answer has the correct unit symbol.

Image Transcription

Dariana Deducing a rate law from the change in concentration over time A chemistry graduate student is studying the rate of this reaction: H2CO, (ag) H20 (ag)+Co, (ag) She fills a reaction vessel with HCO2 and measures its concentration as the reaction proceeds: H,Co3] time minutes) 0 0.800 M 10. 0.377 M 20. 0.246 M 30 0.183 M 40. 0.146 M Use this data to answer the following questions. rate k Write the rate law for this reaction. Calculate the value of the rate constant k. ? X Round your answer to 2 significant digits. Also be sure your answer has the correct unit symbol.

Dariana
Using an integrated rate law for a first-order reaction
Consider this reaction
2HI (g)H (g)+I, (e)
At a certain temperature it obeys this rate law.
rate (0.00981 s[HI]
Suppose a vessel contains HI at a concentration of 0.460 M. Calculate the concentration of HI in the vessel 65.0 seconds later. You may assume no other
reaction is important.
Round your answer to 2 significant digits
?
X

Image Transcription

Dariana Using an integrated rate law for a first-order reaction Consider this reaction 2HI (g)H (g)+I, (e) At a certain temperature it obeys this rate law. rate (0.00981 s[HI] Suppose a vessel contains HI at a concentration of 0.460 M. Calculate the concentration of HI in the vessel 65.0 seconds later. You may assume no other reaction is important. Round your answer to 2 significant digits ? X

Expert Answer

Want to see the step-by-step answer?

See Answer

Check out a sample Q&A here.

Want to see this answer and more?

Step-by-step answers are written by subject experts who are available 24/7. Questions are typically answered in as fast as 30 minutes.*

See Answer
*Response times vary by subject and question complexity. Median response time is 34 minutes and may be longer for new subjects.
Tagged in
ScienceChemistry

Chemical Kinetics

Related Chemistry Q&A

Find answers to questions asked by student like you
Show more Q&A

Q: Which observation illustrates the law of conservation of mass? A.)When 3 g of carbon reacts with 8 ...

A: Law of conservation of mass states that matter cannot be created nor to be destroyed in a chemical r...

Q: What mass of water (grams) must be added to 72.5 g KNO3 to generate 2.00 L of aqueous solution with ...

A: Click to see the answer

Q: Revie The distance from Earth to the sun is 1.5 x 10° km. You may want to reference (Pages 76 - 85) ...

A: Wavelength = c / fwavelength = 3.0x108 m / s / 1.7x1014                                             ...

Q: Define heat of reaction?

A: The heat of reaction, the amount of heat that must be added or removed during a chemical reaction in...

Q: 8. How many grams of NaCl are required to precipitate most of the Ag+ ions from 2.50 × 102 mL of 0.0...

A: We have to calculate the mass of NaCl that would precipitate out all Ag+ ions from 2.50 × 102 mL of ...

Q: Write the empirical formula for at least four binary ionic compounds that could be formed from the f...

A: In the given ions, Mg2+, V5+are the cations whereas Cl-, S2- are the anions.

Q: Acetone (nail polish remover) has a density of 0.7857 g/cm3. What is the volume, in milliliters, of...

A: Density is the ratio of mass to Volume. Given:Mass of acetone = 6.72 gDensity of acetone = 0.7857 g/...

Q: If the pKa values for the bases were given, I would know how to solve this but how can I know just b...

A: The proton of the given alkyne is acidic. To deprotonate the alkyne proton the strong base is needed...

Q: Why do NO2 and CO2 have different molecular shape, even though their molecular formula is so similar...

A: The Lewis structure or molecular skeleton is also known as electron dot structure. It is the complet...