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
bezimeni [28]
3 years ago
7

Calculate the enthalpy change when 4.00 mol Cl2O7 is produced according to the following balanced equation:

Chemistry
1 answer:
marissa [1.9K]3 years ago
8 0

So the equation is,

2Cl2(g) + 7O2(g) + 130kcal -> 2Cl2O7(g)

from this , ΔH°rxn=130kcal.mol^{-1}

mol^{-1} is mentioned because it is for per mole of reaction. So for 4. moles of the product 2Cl_{2} O_{7} we need 4/2 moles of reaction to be used to calculate associated enthalphy change for the reaction.

Therefore4/2*130=260 kcal


You might be interested in
Convert 22.4kg/l to kg/ml
Lady_Fox [76]
to be in kg/mL. What you need to do first is write 22.4 kg/L over 1. Divide this by 1000 because there are 1000 mL per L. Your equation will look like 22.4 kg/L over 1 divided by 1000/1. You end up getting .0224 kg/mL.
3 0
3 years ago
A container of N, 03(9) has a pressure of 0.490 atm. When the absolute temperature of the N, O2(g) is tripled, the gas
spayn [35]

Answer: 1.59atm

Explanation:

We have that for the Question "Calculate the final pressure of the gas mixture, assuming that the container volume does not change."

it can be said that

The final pressure of the gas mixture, assuming that the container volume does not change =

From the question we are told

A container of N2O3(g) has a pressure of 0.265 atm. When the absolute temperature of the N2O3(g) is tripled, the gas completely decomposes, producing NO2(g) and NO(g).

3 0
2 years ago
2-butanone is converted into 3-methyl-3-hexanol using a grignard reagent prepared from 1-bromopropane and magnesium metal in thf
Andre45 [30]

Answer:

Here's what I get.

Explanation:

At the end of the reaction you will have a solution of the alcohol in THF.

The microdistillation procedure will vary, depending on the specific apparatus you are using, but here is a typical procedure.

  • Transfer the solution to a conical vial.
  • Add a boiling stone.
  • Attach a Hickman head (shown below) and condenser.
  • Place the assembly in in the appropriate hole of an aluminium block on top of a hotplate stirrer.
  • Begin stirring and heating at a low level so the THF (bp 63 °C) can distill slowly.
  • Use a Pasteur pipet to withdraw the THF as needed.
  • When all the THF has been removed, raise the temperature of the Al block and distill the alcohol (bp 143 °C).

7 0
3 years ago
When the coffee is brewed according to directions, a pound of coffee beans yields 50 cups of coffee (4 cups = 1 qt). How many kg
Xelga [282]

1 pound of coffee is said to yield 50 cups of coffee

So we need to find the pounds of coffee beans required to produce 250 cups

so if 50 cups need 1 pound of coffee beans

therefore 250 cups need - 1/50 x 250 = 5 pounds of coffee beans

since we have to find the amount of coffee beans needed in kg, we have to convert pounds to kg

1 pound = 0.45 kg

So if 1 pound is equivalent to 0.45 kg

then 5 pounds are equivalent to - 0.45 kg/pound x 5 pounds = 2.25 kg

therefore 2.25 kg of coffee beans are required

4 0
3 years ago
Read 2 more answers
Which of the following correctly defines transcription?
icang [17]
I would say is b. The answer
8 0
3 years ago
Read 2 more answers
Other questions:
  • Neon is an inert gas and has the atomic number of 10. Which of the following correctly depicts its electron configuration? 1s22d
    12·1 answer
  • Rewrite this measurement with a simpler unit, if possible. <br> 8.3 kg•m^2/ s^2
    8·1 answer
  • A description of property that uses distances and directions based on monuments, such as a tree or a rock, is called:
    11·1 answer
  • What is the net ionic equation for AgNO3 and Na2CO3
    11·1 answer
  • How much glycerol ( is liquid supplied at 100%) would you need to make 200 mL of 20% v/v (volume/volume) glycerol solution?
    9·1 answer
  • If water were a non-polar<br> Molecule
    10·1 answer
  • Can Hydrogen hydrogen bond with itself? <br><br> Example:<br> Is H-H a hydrogen bond?
    9·1 answer
  • 1.5.2
    5·1 answer
  • Which atom is most likely involved in the coordination of calcium ions found in hrp?.
    10·1 answer
  • The process of releasing silver iodide into the atmosphere to stimulate rainfall is called:?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!