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]
3 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]3 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
Paliwanag ang kahalagahan ng papa at ng holy roman emperor sa panahong midieval.
Doss [256]

Explanation:

The Holy Roman Empire (Latin: Sacrum Imperium Romanum; German: Heiliges Römisches Reich), also termed as the First Reich, was a multi-ethnic complex of territories in Western and Central Europe that developed during the Early Middle Ages and continued until its dissolution in 1806 during the Napoleonic Wars.[6] The largest territory of the empire after 962 was the Kingdom of Germany, though it also included the neighboring Kingdom of Bohemia and Kingdom of Italy, plus numerous other territories, and soon after the Kingdom of Burgundy was added. However, while by the end of the 15th century the Empire was still in theory composed of three major blocks – Italy, Germany, and Burgundy – in practice only the Kingdom of Germany remained, with the Burgundian territories lost to France and the Italian territories, ignored in the Imperial Reform, although formally part of the Empire, were splintered into numerous de facto independent territorial entities.[7][8][9][10] The external borders of the Empire did not change noticeably from the Peace of Westphalia – which acknowledged the exclusion of Switzerland and the Northern Netherlands, and the French protectorate over Alsace – to the dissolution of the Empire. By then, it largely contained only German-speaking territories, plus the Kingdom of Bohemia, the southern Netherlands and lands of Carniola. At the conclusion of the Napoleonic Wars in 1815, most of the Holy Roman Empire was included in the German Confederation.

in yr language:

Ang Holy Roman Empire (Latin: Sacrum Imperium Romanum; German: Heiliges Römisches Reich), na tinawag din bilang First Reich, ay isang multi-etniko na kumplikado ng mga teritoryo sa Kanluran at Gitnang Europa na d

3 0
3 years ago
Sodium chloride reacts with copper sulfate to produce sodium sulfate and copper chloride. mc011-1.jpg This equation represents a
Anarel [89]
This is a double replacement because both Copper and Sodium reacted with each other compounds , hence "double"
7 0
3 years ago
Read 2 more answers
Please help me with this question it's due in like 3hours from now
saw5 [17]

237kj mole for both.....




4 0
3 years ago
To see if it works like they want it to, engineers need to Question 3 options:
ziro4ka [17]

Answer:

they need to do their research

4 0
2 years ago
Read 2 more answers
During a science investigation, a sample of matter breaks down into two kinds of atoms. Was the original sample an element or a
nevsk [136]
The original sample was a compound because it was composed of two different elements and was not purely one element
3 0
3 years ago
Other questions:
  • Which statement is TRUE about polar covalent bond?
    14·1 answer
  • Which ionic equation for reaction of Magnesium with dilute hydrochloric acid is correct? Mg (s) + 2H+ (aq) â Mg2+ (aq) + H2 (g)
    12·2 answers
  • Which is stronger - the attractive forces between water molecules and chromium and chloride ions, or the combined ionic bond str
    12·2 answers
  • Write reaction showing how each of the buffers would neutralize added naoh. hcho2 and nacho2
    10·1 answer
  • HELP ME PLZ!!! I really dont know this!!! What characteristic of metals makes them good electrical conductors? -They have mobile
    13·1 answer
  • Which describes the composition of matter in the figure C?
    5·1 answer
  • Name 5 types of energy​
    11·2 answers
  • How does a lightning rod protect a<br> building from lightning damage?
    12·2 answers
  • What is the frequency of an X-ray that has a wavelength of 1.5 x 10 -9 m? The speed of electromagnetic radiation is 3.0 x 10 8 m
    12·1 answer
  • According to Le Chatelier's principle, what happens to the equilibrium constant (K) when the concentration of the reactants is d
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!