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
Artyom0805 [142]
3 years ago
9

If 3 moles of a compound use 24 J of energy in a reaction, what is the A Hreaction in J/mol?

Chemistry
1 answer:
erma4kov [3.2K]3 years ago
8 0

Answer:

+8 J/mol

Explanation:

The following were obtained from the question:

Mole of the compound = 3 moles

Heat Energy used = 24J

Hreaction =?

The heat of reaction is the energy released or absorb during a chemical reaction. It is can obtained mathematically by the following equation:

Hreaction = Heat energy/mole

With the above equation, we can easily find the Hreaction for the question given as follow:

Hreaction = Heat energy/mole

Hreaction = 24J / 3mol

Hreaction = 8 J/mol

Since the compound used the energy, the Hreaction is +8 J/mol

You might be interested in
Which is not a compound? water silicon dioxide oxygen gas carbon dioxide gas
Illusion [34]
All of these are compounds except oxygen because a compound is two or more different elements bonded together.
4 0
3 years ago
Alkanes are chains of carbon atoms surrounded by hydrogen atoms. <br><br> a. True<br> b. False
Ne4ueva [31]

Answer:

a. True

Explanation:

Alkanes are chains of carbon atoms surrounded by hydrogen atoms. TRUE.

Alkanes are hydrocarbons, that is, they are organic compounds formed only by carbon and hydrogen. In alkanes, carbon atoms are bonded to each other through single covalent bonds and they are also bonded to hydrogen atoms through the same type of bonds. Alkanes have the general formula CnH2n+2.

7 0
3 years ago
How did Mendeleev set up his Periodic Table of Elements?
Ksju [112]
He set up his periodic table by the atomic mass
8 0
2 years ago
Can you please help me and can you show your work please
natali 33 [55]

Answer:

1. 25 moles water.

2. 41.2 grams of sodium hydroxide.

3. 0.25 grams of sugar.

4. 340.6 grams of ammonia.

5. 4.5x10²³ molecules of sulfur dioxide.

Explanation:

Hello!

In this case, since the mole-mass-particles relationships are studied by considering the Avogadro's number for the formula units and the molar mass for the mass of one mole of substance, we proceed as shown below:

1. Here, we use the Avogadro's number to obtain the moles in the given molecules of water:

1.5x10^{25}molecules*\frac{1mol}{6.022x10^{23}molecules} =25 molH_2O

2. Here, since the molar mass of NaOH is 40.00 g/mol, we obtain:

1.2mol*\frac{40.00g}{1mol} =41.2g

3. Here, since the molar mass of C6H12O6 is 180.15 g/mol:

45g*\frac{1mol}{180.15g}=0.25g

4. Here, since the molar mass of ammonia is 17.03 g/mol:

20mol*\frac{17.03g}{1mol}=340.6g

5. Here, since the molar mass of SO2 is 64.06 g/mol:

48g*\frac{1mol}{64.06g} *\frac{6.022x10^{23}molecules}{1mol} =4.5x10^{23}molecules

Best regards!

5 0
3 years ago
What is the most reactive element
SashulF [63]

Answer:

fluorine

Explanation:

3 0
3 years ago
Other questions:
  • Determine how many moles of O2 are required to react completely with 6.7 moles C6H14.
    6·1 answer
  • How do I convert 498.82 cg to mg
    11·2 answers
  • Global warming facts
    10·1 answer
  • Alcoholic beverages contain this type of alcohol:
    7·2 answers
  • What state of matter is glass? Why does this seem odd?
    14·2 answers
  • Compound X has a molar mass of 104.01·gmol−1 and the following composition: element mass % nitrogen 26.93% fluorine 73.07% Write
    6·2 answers
  • Explain why the atomic radius of fluorine is smaller than that of lithium​
    13·1 answer
  • Please help. I’m stuck
    13·1 answer
  • The term "cycle" is used in Water Cycle because ?
    5·1 answer
  • Which measurement contains three significant figures?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!