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
Mama L [17]
1 year ago
10

using the following thermochemical equation, determine the amount of heat produced from the combustion of 24.3 g benzene (c6h6).

the molar mass of benzene is 78.11 g/mol. 2 c6h6(l) 15 o2(g) → 12 co2(g) 6 h2o(g) δh°rxn
Chemistry
1 answer:
aliya0001 [1]1 year ago
4 0

the amount of heat produced from the combustion of 24.3 g benzene (c6h6) is ΔH = -976.5 kJ

There are two moles of benzene involved in the process (C6H6). Since the heat of this reaction is -6278 kJ, the burning of 2 moles of benzene will result in a heat loss of 6278 kJ. This reaction is exothermic.

Enthalpy, or the value of H, is a unit of measurement for heat that relies on the amount of matter present (number of moles).

Thus, 24.3 g of benzene contains:

n = mass/molar mass, where n = 24.3/78.11, and n = 0.311 moles.

2 moles = 6278 kJ

0.311 moles =x

By the straightforward direct three rule:

2x = -1953.08 x = -976.5 kJ

Learn more about combustion here-

brainly.com/question/15117038

#SPJ4

You might be interested in
Help PLEASE HELP PLEASE
Gennadij [26K]

Answer:

b. k+

Explanation:

4 0
3 years ago
When doing a titration what is the equivalency point of the neutralization reaction?
KengaRu [80]
The equivalency point is at the point of the titration where the amount of titrant added neutralize the solution. When it’s a strong acid strong base titration, the equivalence point will be 7. When it is a weak acid strong base, the equivalence point it more basic (the exact number depends on what acid and base you use). And when it is a strong acid weak base, the equivalence number is more acid (the exact number depends on what acid and base you use). Hope this helps!
3 0
3 years ago
*10 points* PLS HELP!!!!!!!!!!!!!!!!
CaHeK987 [17]
Aluminum foil I think but if not goodluck :)
5 0
3 years ago
Read 2 more answers
What did john dalton state in his atomic theory
ira [324]
<span>Although two centuries old, Dalton's atomic theory remains valid in modern chemical thought. 1) All matter is made of atoms. Atoms are indivisible and indestructible. 3) Compounds are formed by a combination of two or more different kinds of atoms.</span>
4 0
3 years ago
Read 2 more answers
Average Molarity for HCl is .391
Ira Lisetskai [31]

Answer:

#1: 0.00144 mmolHCl/mg Sample

#2: 0.00155 mmolHCl/mg Sample

#3: 0.00153 mmolHCl/mg Sample

Explanation:

A antiacid (weak base) will react with the HCl thus:

Antiacid + HCl → Water + Salt.

In the titration of antiacid, the strong acid (HCl)  is added in excess, and you're titrating with NaOH moles of HCl that doesn't react.

Moles that react are the difference between mmoles of HCl - mmoles NaOH added (mmoles are Molarity×mL added). Thus:

Trial 1: 0.391M×14.00mL - 0.0962M×34.26mL = 2.178 mmoles HCl

Trial 2: 0.391M×14.00mL - 0.0962M×33.48mL = 2.253 mmoles HCl

Trial 3: 0.391M×14.00mL - 0.0962M×33.84mL = 2.219 mmoles HCl

The mass of tablet in mg in the 3 experiments is 1515mg, 1452mg and 1443mg.

Thus, mmoles HCl /mg OF SAMPLE<em> </em>for each trial is:

#1: 2.178mmol / 1515mg

#2: 2.253mmol / 1452mg

#3: 2.219mmol / 1443mg

<h3>#1: 0.00144 mmolHCl/mg Sample</h3><h3>#2: 0.00155 mmolHCl/mg Sample</h3><h3>#3: 0.00153 mmolHCl/mg Sample</h3>
8 0
3 years ago
Other questions:
  • Question 14 of 25
    14·1 answer
  • What does an algae cell, tree,mushroom, and animal have in common
    10·1 answer
  • A sample of a compound contains 60.0 g C and 5.05 g H. Its molar mass is 78.12 g/mol. What is the compound’s molecular formula?
    11·2 answers
  • If 3.0 g of NH3 reacts with 5.0 g of HCl, what is the limiting reactant?
    12·1 answer
  • In the first 21.0 s of this reaction, the concentration of HBr dropped from 0.550 M to 0.506 M . Calculate the average rate of t
    10·1 answer
  • 8. An experiment requires a solution that is 80%
    6·1 answer
  • Given:
    9·1 answer
  • Answer truthfully:))​
    11·1 answer
  • Which of the following is true about this lever?
    6·2 answers
  • A geologist fills three identical funnels with three different sizes of sandstone. Then, the geologist pours 500 mL of water int
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!