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
belka [17]
3 years ago
13

An aluminum kettle weights 1.05 kg and has a heat capacity of 0.9211 J over grams Celsius how much heat is required to increase

the temperature of the scuttle from 23.0 Celsius to 90
Chemistry
1 answer:
Serggg [28]3 years ago
4 0

Answer:

64799.4 J

Explanation:

The following data were obtained from the question:

Mass (M) = 1.05 kg = 1.05 x 1000 = 1050g

Specific heat capacity (C) = 0.9211 J/g°C

Initial temperature (T1) = 23°C

Final temperature (T2) = 90°C

Change in temperature (ΔT) = T2 – T1 =

90°C – 23°C = 67°C

Heat required (Q) =....?

The heat required to increase the temperature of the kettle can b obtain as follow:

Q = MCΔT

Q = 1050 x 0.9211 x 67

Q = 64799.4 J

Therefore, 64799.4 J of heat is required to increase th temperature of the kettle from 23°C to 90°C.

You might be interested in
Convert 4.50 moles of Fe to atoms of Fe
olya-2409 [2.1K]
Each mole of a substance contains 6.02 x 10²³ particles
Atoms of Fe = 4.5 x 6.02 x 10²³
= 2.709 x 10²⁹ atoms
7 0
3 years ago
Why is it necessary to find the percent yield of a reaction
Leokris [45]
The yield of a reaction is the final product. It is necessary to find the percent yield of a reaction since the efficiency of the reaction can be determined.

5 0
2 years ago
Read 2 more answers
A) Calculate the molar mass of ethanol, C2H5OH and water, H20.<br> C2H5OH =<br> H2O =<br> I
Mrrafil [7]

Answer:

1-46

2-18

Explanation:

c=12 H=1 O=16

ethanol (12×2)+(6×1)+(16)=46

water (2×1)+(16)=18

7 0
3 years ago
Even though so much energy is required to form a metal cation with a 2+ charge, the alkaline earth metals form halides with gene
nasty-shy [4]

The ∆Hrxn of the reaction is -394.5kJ/mol.

<h3>What is alkaline earth metal? </h3>

The alkaline earth metals are those elements which correspond to group 2 of the modern periodic table.

All elements of this group forms a cation of +2 charge.

The other elements of this group are:

Beryllium, Magnesium, Calcium, Strontium, Barium, and Radium.

<h3>What is Halogen? </h3>

The Halogen elements are present in group 17 of the modern periodic table.

All elements of this groups forms anions of -1 charge.

The elements of this group are:

Fluorine, Chlorine, bromine, iodine, and astatine.

∆Hrxn = ∆H(bond broken) - ∆H(bond formed)

We have following data of bond energy in kJ/mol:

Mg—Mg = 738

Cl—Cl = -349

Mg—Cl = 783.5

Since, one mole of Mg react with one mole of Cl atom to form one mole of MgCl

∆Hrxn = 738-349-783.5

∆Hrxn = -394.5kJ/mol.

Thus, we concluded that the ∆Hrxn of the reaction is -394.5kJ/mol.

learn more about bond energy:

brainly.com/question/13526463

#SPJ4

3 0
1 year ago
1. What is the criteria' for designating an object an asteroid?
Natasha_Volkova [10]

Answer:

They are defined as having a minimum orbital intersection distance with Earth of less than 0.05 astronomical units (19.5 lunar distances) and an absolute magnitude of 22 or brighter.

Explanation:

8 0
3 years ago
Other questions:
  • Another name for Group is...
    6·1 answer
  • How does the law of conservation of mass apply to this reaction: C2H4+O2=H2O+Co2?
    9·2 answers
  • Matter is anything that has mass and takes up space.​
    15·1 answer
  • Hydrogen is unique among the elements because ________. 1. It is not really a member of any particular group. 2. Its electron is
    7·1 answer
  • Caculate the kinetic energy in J of an electron moving at<br> 6.00x 10 to the sixth power m/s.
    9·1 answer
  • The reactants of two chemical equations are listed.
    8·1 answer
  • The air pressure in a tire is 2.38 atm. What is the pressure in kilopascals.
    7·1 answer
  • What is the concentration of a magnesium hydroxide solution with a pH of 12.05
    8·1 answer
  • What group does this element belong to?
    5·2 answers
  • In each pair, choose the larger of the indicated quantities or state that the samples are equal:
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!