1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
andrezito [222]
2 years ago
10

To measure the speed of a car, we use miles per hour (miles/hour or mi/h or mph). To measure the rate of a reaction we use molar

concentration per second (M/s).Part AImagine that you took a road trip. Based on the information in the table, what was the average speed of your car?Time Mile marker3:00 pm 208:00 pm 241Express your answer to three significant figures and include the appropriate units. Use mi as an abbreviation for miles, and h for hours, or mph can be used to indicate miles per hour.Part BNow consider the following reaction and data:H2+2ICl→2HCl+I2Time(s) I2 concentration(M)5 1.1115 1.83What is the average rate of formation of I2?Express your answer to three decimal places and include the appropriate units.Part CBased on your answer to Part B, what is the average rate of formation of HCl?Express your answer to three decimal places and include the appropriate units.
Chemistry
1 answer:
arsen [322]2 years ago
7 0

Answer:

Part A: 47.8 mi/h

Part B: 0.072 M/s

Part C: 0.144 M/s

Explanation:

Part A

The average speed or velocity (V) is the variation of the space divided by the variation of the time:

V = (241 - 2)/(8 -3)

V = 47.8 mi/h

Part B

As Part A, the average rate (r) of formation of I2 is the variation of the concentration divided by the variation of time:

r = (1.83 - 1.11)/(15 - 5)

r = 0.072 M/s

Part C

The rates of the substances are proportional of their number of moles (n) which are their coefficient, so:

rI2/nI2 = rHCl/nHCl

0.072/1 = rHCl/2

rHCl = 2*0.072

rHCl = 0.144 M/s

You might be interested in
Earth is unique because it is the _____.
astraxan [27]

Answer:

B. The only planet to support life.

Explanation:

5 0
3 years ago
Read 2 more answers
How does mass and volume affect sinking and floating? Please don't plagiarize.... ​
Firdavs [7]

Answer:

If an object has a higher density than the fluid it is in (fluid can mean liquid or gas), it will sink. If it has a lower density, it will float. Density is determined by an object's mass and volume. If two objects take up the same volume, but have one has more mass, then it also has a higher density.

Explanation:

6 0
2 years ago
The three most common states of matter on Earth are solids,blank
Nostrana [21]

Answer:

<h3>example:</h3><h3>meaning of the blank you need to do complete the words</h3>

Explanation:

<h2>#CarryOnLearning</h2>
7 0
2 years ago
If you try to balance an equation by changing subscripts you change...
aksik [14]

Answer:

kwkrofofoxosowoqoaododpdprofpcoxozoskawkdjdn

Explanation:

sklwlrlfclxoskkekrdododosoekekrkrododowoekekfkdodkwkeororkdkdkwejrjrkfidiwi3jr

8 0
2 years ago
Sulfurous acid reacts with barium hydroxide.
Ivenika [448]

Answer:

Ba(OH)2 + H2SO3 = BaSO3 + H2O -

Explanation:

3 0
2 years ago
Other questions:
  • write the chemical equation for the following reaction: the elements carbon and oxygen combine to yield the compound carbon diox
    15·1 answer
  • What is the approximate ratio of [NO2-] to [HNO2] in order to buffer a solution at pH=4.0?
    8·1 answer
  • Which option is an example of a chemical property? Question options: reactivity color melting point density
    15·2 answers
  • What are the characteristics of a continental drift?
    5·1 answer
  • How has the modern research in chemistry impacted society
    10·1 answer
  • Why might a scientist repeat an experiment if she did not make a mistake in the first one?
    7·1 answer
  • The mineral enargite is 48.41% cu, 19.02% as, and 32.57% s by mass. what is the empirical formula of enargite?
    11·1 answer
  • Which refers to the passing of a wave through an object?
    10·2 answers
  • PLEASE HELP!!!
    15·2 answers
  • In order to dilute 40.0 mL of 0.600 M HCl to 0.200 M, the volume of water that would need to be added would be 200 mL. 80.0 mL.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!