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
tekilochka [14]
3 years ago
8

Calculate the energy (in kJ) required to heat 10.1 g of liquid water from 55 oC to 100 oC and change it to steam at 100 oC. The

specific heat capacity of liquid water is 4.18 J/goC, and the molar heat of vaporization of water is 40.6 kJ/mol.
Chemistry
1 answer:
Maksim231197 [3]3 years ago
7 0

Answer:

           \large\boxed{\large\boxed{24.6kJ}}

Explanation:

<u>1. Energy to heat the liquid water from 55ºC to 100ºC</u>

     Q=m\times C\times \Delta T

  • m = 10.1g
  • C = 4.18g/JºC
  • ΔT = 100ºC - 55ºC = 45ºC

     Q=10.1g\times 4.18J/g\ºC\times 45\ºC=1,899.81J

<u>2. Energy to change the liquid to steam at 100ºC</u>

      L=\lambda \times n

  • λ = 40.6kJ/mol
  • n = 10.1g / 18.015g/mol = 0.5606mol

      L=40.6kJ/mol\times 0.5604mol=22.76214kJ=22,762.14J

<u>3. Total energy</u>

       1,899.81J+22,762.14J=24,661.95J\approx24,662J\approx24.6kJ

You might be interested in
How many doubtful digit(s) is/are allowed in any measured quantity?
Mnenie [13.5K]

Answer:

zero

Explanation:

I I think one should be so accurate with measurements and experiments

3 0
2 years ago
When 3-iodo-3-ethylpentane is heated in methanol, the major organic product is an __________________ that is generated through a
katovenus [111]

Answer:

Ether

SN1 mechanism

Explanation:

The nucleophile in this reaction is CH3OH. It is a poor nucleopile. We already know that a poor nucleophile reacting with a tertiary alkyl halide often leads to the substitution product as the major product.

Also, the iodide ion is a good leaving group. This makes the SN1 substitution more likely yielding the ether as the major product as shown in the image attached.

5 0
3 years ago
What is the product of the following chemical equation? C3H8(g) + 5O2(g) →
Ghella [55]
Carbon Dioxide and Water
7 0
2 years ago
Read 2 more answers
Due to food scarcity in ancient times people had to spend
Umnica [9.8K]
The answer is A as they had to spend time growing or looking for food as food was scarce back then.
6 0
3 years ago
Draw the Lewis structure for sulfur tetrafluoride, SF4
Vlad [161]

Notes:-

  • S has Z=16

Electronic configuration

  • 1s²2s²2p⁶3s²3p⁴

So

  • Valency is 4 and 6

  • Three fluorine atoms take 3 electrons and one lone pair present over S
  • As one electron remains unshared so we use + sign .

6 0
2 years ago
Other questions:
  • An atom holds 7 electrons. use orbital notation to model the probable location of its electrons.
    11·1 answer
  • The pressure is recorded as 738 mmHg.Convert this measurement to atmosphere (atm)
    7·1 answer
  • How do you design a good scientific experiment?
    5·1 answer
  • 6th grade science help me :)))
    9·2 answers
  • What do we call atoms of the same elements with different mass numbers?
    12·1 answer
  • Which statement describes one acid-base theory?
    7·1 answer
  • Helium is the___
    8·1 answer
  • Exercise while in space is important because it PREVENTS what?
    13·1 answer
  • WHAT HAPPENS WHEN ELECTRIC CURRENT PASSES THROUGH ACIDIFIED WATER.
    14·2 answers
  • Conservation of resources includes the following actions EXCEPT
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!