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
Nadusha1986 [10]
3 years ago
13

The heat of vaporization for ethanol is 0.826 kJ/j. Calculate the heat energy in joules required to boil 45.65g of ethanol

Chemistry
2 answers:
andrey2020 [161]3 years ago
6 0

Answer:

ethanol is already at the ethanol's boiling point: (0.826 kJ/g) x (70.05 g) = 57.8613 kJ = 5.79 x 10^4 J.

Missing: 45.65 ‎| ‎Must include: ‎45.65

Explanation:

Rashid [163]3 years ago
5 0

Answer:

Explanation:

Supposing the temperature of the ethanol is already at the ethanol's boiling point:

(0.826 kJ/g) x (70.05 g) = 57.8613 kJ = 5.79 x 10^4 J

You might be interested in
How many electrons are in a s-2 ion​
Zielflug [23.3K]

Answer:

the ion will have additional 2 electrons so it will be 18

6 0
3 years ago
Which parts (postulates) of Dalton's atomic theory has been modified in light of later discoveries
professor190 [17]

Explanation:

1) Atoms can not be subdivided. It has been changed as it is possible to divide an atom into Protons, Neutrons and Electrons as well as other smaller particles.

2) The regulations for the chemical mixture have always been altered to the rules for the chemical combination in the creation of organic compounds may be denied.

3)Atoms are of a particular element are identical in all respects i. e. they have same mass and similar properties.

It was modified. And according. to new search;

Atoms of the same element may not be always identical.

8 0
3 years ago
Heat is being transferred from the ground to the air above it by conduction. Explain how this is possible.
Klio2033 [76]

Answer:

Conduction directly affects air temperature only a few centimeters into the atmosphere. During the day, sunlight heats the ground, which in turn heats the air directly above it via conduction. At night, the ground cools and the heat flows from the warmer air directly above to the cooler ground via conduction.

Explanation:

4 0
3 years ago
Read 2 more answers
hat is the pH of a solution with a hydroxide ion concentration of 10–6M? A. pH = 12 B. pH = 8 C. pH = 6 D. pH = 7
WARRIOR [948]
C=10⁻⁶ mol/L

pH=14-pOH

pOH=-lg[OH⁻]

pH=14+lg10⁻⁶=14-6=8

B. pH = 8

8 0
3 years ago
Does a hypothesis have to be true for a experiment to be valid?
Sav [38]

Answer:

no

Explanation:

because hypothesis are just what we thing is gonna happen it doesn't have to be true

sorry if im wrong

3 0
3 years ago
Other questions:
  • In terms of electrons why does a cation have a positive charge
    15·1 answer
  • A 2.50-l volume of hydrogen measured at â196 °c is warmed to 100 °c. calculate the volume of the gas at the higher temperature
    6·1 answer
  • List three particals that make up atoms
    9·1 answer
  • A student increases the temperature of a balloon from 278 K to 231 K. Assuming constant pressure, what should the new volume of
    11·1 answer
  • What is the overall reaction order for this rate law: rate= k[a][b]?
    6·1 answer
  • What changes a liquid to a gas?
    5·2 answers
  • What mass in grams of PCl5 will be produced from 0.25 moles of PCl3 and excess chlorine gas?
    7·1 answer
  • Given the following equation:
    7·1 answer
  • Calculate the wavelength and frequency of an emitted photon of gamma radiation that has energy of 3.02 × 1011 J/mol.
    7·1 answer
  • What is 1+1=?and what is 2+2=?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!