An electric range burner weighing 699.0 grams is turned off after reaching a temperature of 482.0°C, and is allowed to cool down to 22.7°C.

Calculate the specific heat of the burner if all the heat evolved from the burner is used to heat 560.0 grams of water from 22.7°C to 80.3°C.


J/g°C

Answers

Answer 1

Answer:

0.42 J/gºC

Explanation:

We'll begin by calculating the heat energy used to heat up the water. This can be obtained as follow:

Mass (M) of water = 560 g

Initial temperature (T₁) = 22.7 °C

Final temperature (T₂) = 80.3 °C.

Specific heat capacity (C) of water = 4.18 J/gºC

Heat (Q) absorbed =?

Q = MC(T₂ – T₁)

Q = 560 × 4.18 (80.3 – 22.7)

Q = 2340.8 × 57.6

Q = 134830.08 J

Finally, we shall determine the specific heat capacity of the burner. This can be obtained as follow:

Mass (M) of burner = 699 g

Initial temperature (T₁) = 482.0°C

Final temperature (T₂) = 22.7 °C

Heat (Q) evolved = – 134830.08 J

Specific heat capacity (C) of the burner =?

Q = MC(T₂ – T₁)

–134830.08 = 699 × C (22.7 – 482.0)

–134830.08 = 699 × C × –459.3

–134830.08 = –321050.7 × C

Divide both side by –321050.7

C = –134830.08 / –321050.7

C = 0.42 J/gºC

Therefore, the specific heat capacity of the burner is 0.42 J/gºC


Related Questions

Question 7
3 pt:
N2 + 312 --> 2N13
If 81.3 grams of lodine is reacted with 4.49 grams of nitrogen what is the theoretical yield?
(Include the correct number of significant figures but no units)
Question 8

Answers

Answer:

84.3 g of nitrogen triiodide is the theoretical yield.

Explanation:

Hello there!

In this case, according to the chemical reaction:

[tex]N_2 + 3I_2 \rightarrow 2NI_3[/tex]

It is possible to compute the theoretical yield of nitrogen triiodide by each reactant via stoichiometry as shown below:

[tex]m_{NI_3}^{by\ N_2}=4.49gN_2*\frac{1molN_2}{28.01gN_2} *\frac{2molNI_3}{1molN_2}*\frac{394.72gNI_3}{1molNI_3} =126.55gNI_3\\\\m_{NI_3}^{by\ I_2}=81.3gI_2*\frac{1molI_2}{253.81gI_2} *\frac{2molNI_3}{3molI_2}*\frac{394.72gNI_3}{1molNI_3} =84.29gNI_3[/tex]

Therefore, we infer that the smallest amount is the correct theoretical yield as it comes from the limiting reactant, in this case, diatomic iodine as it yields 84.3 g (three significant figures) of nitrogen triiodide as the theoretical yield; incidentally, nitrogen acts as the excess reactant.

Best regards!

Identify each of the patterns labeled in the ridge pattern diagram

Answers

Answer: The suspected and crime scene fingerprint patterns are similar which means they belong to the same individual.

Explanation:

A:  Ending ridge between two lines forming a loop like structure common in both suspected and crimes scene patterns.

B: Bifurcation which includes the formation of fork like shape of the ridge.

C: Island is a dot or point like structure which is common in both patterns.

D: It includes delta which is seen in the case of loop and whorl patterns of the fingerprint in loop there is only one delta and in case of whorl there are two deltas. The delta have an island and a bifurcation in it which is common in both patterns of the fingerprints.

E: Intersection occurs when two ridges changes their directions. It is common in the two patterns.

How can we find life on other planets?

Answers

Through satellites...

how does someone get addicted to meth?

Answers

Whewww!! What class is this for

Look at the diagram below.

Ray 1 from the Sun moves through air and falls on the surface of a lake. Ray 2 is a ray which travels from the surface of the lake at the point Ray 1 strikes the lake, and moves towards air. Ray 1 and Ray 2 make the same angle with the surface of the lake. Ray 1 bends towards the vertical when it enters the lake as Ray 3

Which statement is true?

Ray 2 is the refracted ray.
Ray 3 is the reflected ray.
Ray 1 and Ray 2 make the same angle with the vertical line.
Ray 1 and Ray 3 make the same angle with the vertical line.

Answers

Answer:

3rd statment

Explanation:

ray 1 and 2 are same vertical line

Answer: C:  Ray 1 and Ray 2 make the same angle with the vertical line.

Explanation:

CH4 Structural formulas​

Answers

Explanation:

Methane = CH4

(formula)

The models show the phases of a substance at various temperatures. Which model BEST communicates the kinetic energy and particle arrangement of a liquid? A. Model D, because it has high kinetic energy so the particles in the model have ionized B. Model B, because it has some kinetic energy and the particles have a free flowing shape C. Model C, because it has high kinetic energy so the particles in the model have no definite shape D. Model A, because it has some kinetic energy and the particles move freely

Answers

Answer: Model B. I have included a graph for this question. Model D is incorrect because that is a model for plasma as liquid doesn't contain ionized particles. Model C is incorrect as that represents a solid. Model A is incorrect because that is showing a gas; the particles are moving very freely

According to the forces of attraction, model B  communicates the kinetic energy and particle arrangement of a liquid.

What are forces of attraction?

Forces of attraction is a force by which atoms in a molecule  combine. it is basically an attractive force in nature.  It can act between an ion  and an atom as well.It varies for different states  of matter that is solids, liquids and gases.

The forces of attraction are maximum in solids as  the molecules present in solid are tightly held while it is minimum in gases  as the molecules are far apart . The forces of attraction in liquids is intermediate of solids and gases.

The physical properties such as melting point, boiling point, density  are all dependent on forces of attraction which exists in the substances.

Learn more about forces of attraction,here:

https://brainly.com/question/23841038

#SPJ2

Your question is incomplete  but most probably your full question was, The models show the phases of a substance at various temperatures. Which model BEST communicates the kinetic energy and particle arrangement of a liquid? A. Model D, because it has high kinetic energy so the particles in the model have ionized B. Model B, because it has some kinetic energy and the particles have a free flowing shape C. Model C, because it has high kinetic energy so the particles in the model have no definite shape D. Model A, because it has some kinetic energy and the particles move freely

what is the molar mass of aspartic acid​

Answers

What is the molar mass of aspartic acid, C404H7N?

ANSWER: 133g/mol

The molar mass of aspartic acid is 133.05g/mol.

What is molar mass?

The molar mass is the mass per unit amount of substance of a given chemical entity. It is denoted by a symbol M. The SI unit of molar mass is kg/mol.

What is aspartic acid?

Aspartic acid is one of the building-block of amino acids which is responsible for synthesizing proteins and regulating hormones in the human body.

The chemical formula of aspartic acid is C4H7NO4.

Atomic mass of C = 12.011u, H = 1.007u, N = 14.006u, O = 16u

Molar mass of C4H7NO4 = 4(12.011)+7(1)+14.006+4(16)

                 = 48.044+7+14.006+64

                 = 133.05g/mol

Hence, the molar mass of aspartic acid is 133.05g/mol.

To learn more about molar mass here

https://brainly.com/question/12127540

#SPJ2

If 263 ml of a gas is collected at 47°c and 2.77 atm, what will the final temp be in C if the volume decreases to 195 mL and the pressure increases to 3.87 atm?
im stoopid so yeh pls help

Answers

Answer:

[tex]58.48^{\circ}\text{C}[/tex]

Explanation:

[tex]P_1[/tex] = Initial pressure = 2.77 atm

[tex]V_1[/tex] = Initial volume = 263 mL

[tex]T_1[/tex] = Initial temperature = [tex]47^{\circ}\text{C}=(47+273.15)\ \text{K}[/tex]

[tex]P_2[/tex] = Final pressure = 3.87 atm

[tex]V_2[/tex] = Final volume = 197 mL

[tex]T_2[/tex] = Final temperature

We have the relation

[tex]\dfrac{P_1V_1}{T_1}=\dfrac{P_2V_2}{T_2}\\\Rightarrow T_2=\dfrac{P_2V_2}{P_1V_1}\times T_1\\\Rightarrow T_2=\dfrac{3.87\times 195}{2.77\times 263}\times (47+273.15)\\\Rightarrow T_2=331.63\ \text{K}=331.63-273.15\\\Rightarrow T_2=58.48^{\circ}\text{C}[/tex]

The final temperature will be [tex]58.48^{\circ}\text{C}[/tex].

what is the electron configuration of S and Cl?

Answers

Answer:

S is [Ne] 3s²3p⁴

Cl is [Ne] 3s² 3p⁵

Explanation:

Who kept scientific experiments from being performed in the middle
ages?
A. The Government
B. The Judicial System
C. The Board of Science
D. The Church

Answers

Answer:

D. The Church

plz mark me as brainliest

When the Sun and Moon are aligned in the same direction, the tides are higher than normal, known as________

Answers

Answer:

spring tides is the correct answer of your question

Please Answer Giving Brainleist
What gas in the air is used by plants to make their own food?

A) Nitrogen

B) Water vapor

C) Carbon dioxide

D) Oxygen

Answers

Answer:

C) Carbon dioxide is the answer.

Answer:

C. Carbon Dioxide

Carbon is absorbed by plants and chemically converted to oxygen via photosynthsis.

Hope this helps!

During a lab experiment performed at STP conditions, you prepare HCl by reacting 100. ml of Cl2 gas with an excess of H2 gas.
How many ml of a solution of Ba(OH)2 0.230M do you need to neutralize all the HCl produced?

Answers

Answer:

19.4 mL Ba(OH)2

Explanation:

H2(g) + Cl2(g) --> 2HCl(aq) (make sure this equation is balanced first)

At STP, 1 mol gas = 22.4 L gas. Use this conversion factor to convert the 100. mL of Cl2 to moles.

0.100 L Cl2 • (1 mol / 22.4 L) = 0.00446 mol Cl2

Use the mole ratio of 2 mol HCl for every 1 mol Cl2 to find moles of HCl produced.

0.00446 mol Cl2 • (2 mol HCl / 1 mol Cl2) = 0.00892 mol HCl

HCl is a strong acid and Ba(OH)2 is a strong base so both will completely ionize to release H+ and OH- respectively. You need 0.00892 mol OH- to neutralize all of the HCl. Note that one mole of Ba(OH)2 contains 2 moles of OH-.

0.00892 mol OH- • (1 mol Ba(OH)2 / 2 mol OH-) • (1 L Ba(OH)2 / 0.230 M Ba(OH)2) = 0.0194 L = 19.4 mL Ba(OH)2

The first step in answering this reaction is to write down the required reaction equations and then answer the questions from stoichiometry(mass-mole relationship).

The first equation is;

[tex]H2(g) + Cl2(g) ------->2HCl(g)[/tex]

The second equation is

[tex]2HCl(g) + Ba(OH)2(aq) -------> BaCl2(aq) + 2H2O(l)[/tex]

From stoichiometry;

1ml = 1cm3

Since hydrogen is in excess, chlorine is the limiting reactant

1 mole of Cl2 occupies 22400cm3

x moles of Cl2 occupies 100cm3

x = 1 * 100/22400

x = 0.00446 moles of Cl2

According to the reaction equation;

1 mole of Cl2 yields 2 moles of HCl

0.00446 moles of Cl2 yields 0.00446 * 2/1

= 0.00892 moles of HCl

From the reaction equation;

2 moles of HCl reacts with 1 mole of Ba(OH)2

0.00892 moles of HCl reacts with 0.00892 * 1/2 = 0.00446 moles of Ba(OH)2

Since 0.00446 moles of Ba(OH)2 reacted

number of moles = concentration * volume

number of moles =  0.00446 moles

concentration = 0.230M

Let the volume in ml be V

0.00446 =  0.230 * V/1000

V = 0.00446 * 1000/ 0.230

V = 19.39 ml

Volume in ml = 19.39 ml of Ba(OH)2

Learn more: https://brainly.com/question/9743981

What is the molarity of ZnCl, that forms when 20.0 g of zinc completely reacts with CuCl2, according to the following reaction? Assume a final
volume of 285 mL

Zn(s) + CuCl2(aq) → ZnCl2(aq) + Cu(s)

Answers

1.61m :) use the photo below

does anyone know the answer???​

Answers

Answer:

ethyl ethernal

Explanation:

no explanation

Joseph rides his bike for 30 miles in one hour
going west . Is it speed velocity or acceleration

Answers

Answer:

velocity

Explanation:

because he is going 30 miles west

A compound contains 53% Al and 47% O by mass. What
is the empirical formula of this compound?

Answers

Answer:

Al2O3

Explanation:

Empirical formula is found by converting percent composition into a mole ratio.

First, assume you have a 100g sample of the substance. This allows you to make your percent composition into grams.

100% = 100g

53% = 53g Al

47% = 47g O

Next, divide each substance's mass by their molar mass. This converts your number to moles.

[tex]53g Al / 27g Al = 1.96 mol\\\\47g O/16g O = 2.93mol[/tex]

Next, divide both mol answers by the smallest number of moles.

[tex]1.96mol/1.96mol = 1\\2.93mol/1.96mol = 1.5[/tex]

Usually, these answers would be your subscripts for your empirical formula. However, we cannot have a decimal subscript, so we will multiply our answers by a factor of 2 to get to a whole number. This gives us 2 moles of Al and 3 moles of oxygen, or a formula of Al2O3.

Considering the definition of empirical formula, the correct answer is the second option: the empirical formula is Al₂O₃.

Definition of empirical formula

The empirical formula is the simplest expression to represent a chemical compound, which indicates the elements that are present and the minimum proportion in whole numbers that exist between its atoms, that is, the subscripts of chemical formulas are reduced to the most integers. small as possible.

Empirical formula in this case

Assuming a 100 grams sample, the percentages match the grams in the sample. So you have 53 grams of Al and 47 grams of O.

Then it is possible to calculate the number of moles of each atom in the molecule, taking into account the corresponding molar mass:

Al: [tex]\frac{53 grams}{27 \frac{grams}{mole} }[/tex]= 1.9629 moles

O: [tex]\frac{47 grams}{16 \frac{grams}{mole} }[/tex]= 2.9375 moles

The empirical formula must be expressed using whole number relationships, for this the numbers of moles are divided by the smallest result of those obtained. In this case:

Al: [tex]\frac{1.9629 moles}{1.9629 moles}[/tex]= 1

O: [tex]\frac{2.9375 moles}{1.9629 moles}[/tex]≅ 1.5

You cannot have a decimal subscript, so you will multiply our answers by a factor of 2 to get to a whole number:

Al: 1× 2= 2

O: 1.5× 2= 3

Therefore the Al:O mole ratio is 2: 3

Finally, the correct answer is the second option: the empirical formula is Al₂O₃.

Learn more about empirical formula:

brainly.com/question/5115389?referrer=searchResults

brainly.com/question/4594902?referrer=searchResults

brainly.com/question/13725914?referrer=searchResults

brainly.com/question/13112542?referrer=searchResults

Balance the following equations:
C3H8 (g) + O2 (g) → CO2 (g) + H2O (g)
NH3 (g) O2 (g) NO2 (g) H2O (g)
Al(NO3) Na3S Al2S3 NaNO3

Answers

Explanation:

C3H8 + 502 ----> 3CO2 + 4H20

4NH3+7O2------> 4NO2+6H2O

2Al(NO3)3 + 3Na2S -------> Al2S3+6NaNO3

Mg(OH)2 is a compound. How many different elements are found in this compound?
Ο Α. 1
ОВ. 3 3
O c. 2

Answers

Answer:

3

Explanation:

3 different elements are found

Mg - magnesium

O -oxygen

H - hydrogen

'

mark brainliest

Answer: 3

Explanation:

How many moles are there in 8.0 grams of CaCO3

Answers

Answer: moles = 0.0799305403604264

Explanation:

7) What is the speed of a jet plane
that flies 7200 km in 9.5 hours?

Answers

Answer:

68,400

Explanation:

what prediction can i make about malaria

Answers

Answer:

A disease caused by a plasmodium parasite, transmitted by the bite of infected mosquitoes.

The severity of malaria varies based on the species of plasmodium.

Symptoms are chills, fever, and sweating, usually occurring a few weeks after being bitten.

People traveling to areas where malaria is common typically take protective drugs before, during, and after their trip. Treatment includes antimalarial drugs.

Explanation:

What resists pH change by reacting with acids and bases?

Answers

A buffer resists the change of ph. That is because a buffer is made of an acid and it’s conjugate base. This mixture will react with any solution that is added to neutralize it. If an acid is added to a buffer, the base in that buffer will react with the added acid to create water and a neutral salt. This reaction results in very little ph change

How would you prepare 500 cm3 of 2.0 M solution of Na2CO3 solution from its anhydrous salt? [C = 12, O = 16, Na = 23

Answers

Answer:

The answer to your question is given below

Explanation:

We'll begin by converting 500 cm³ to L. This can be obtained as follow:

1000 cm³ = 1 L

Therefore,

500 cm³ = 500 cm³× 1 L / 1000 cm³

500 cm³ = 0.5 L

Next, we shall determine the number of mole of Na₂CO₃ in the solution. This can be obtained as follow:

Volume = 0.5 L

Molarity = 2 M

Mole of Na₂CO₃ =?

Molarity = mole /Volume

2 = Mole of Na₂CO₃ / 0.5

Cross multiply

Mole of Na₂CO₃ = 2 × 0.5

Mole of Na₂CO₃ = 1 mole

Finally, we shall determine the mass of 1 mole of Na₂CO₃. This can be obtained as follow:

Mole of Na₂CO₃ = 1 mole

Molar mass of Na₂CO₃ = (23×2) + 12 + (16×3)

= 46 + 12 + 48

= 106 g/mol

Mass of Na₂CO₃ =?

Mass = mole × molar mass

Mass of Na₂CO₃ = 1 × 106

Mass of Na₂CO₃ = 106 g

Thus, to prepare the solution, weigh 106 g of Na₂CO₃ and dissolve in 500 cm³ (i.e 0.5 L) of water.

give the n for the following orbitals
a. 3p
b. 4f​

Answers

Answer:

a. n = 3

b. n = 4

Explanation:

n is just the number in front of the orbital, as n represents the energy level of the orbital.

Answer:

1. n=3

2.n=4

Explanation:n is the number infront of the orbital that representgsthe energy level

Study the diagram of the two animals.




Which statement best describes the animals?


Animal X begins life as a tadpole, and animal Y begins life as a larva that looks like the adult.

Animal X begins life as a larva that looks like the adult, and animal Y begins life as a tadpole.

Both animal X and animal Y begin life as a tadpole and change form as they develop.

Both animal X and animal Y begin life as a larva that looks like the adult.

Answers

Both animal X and animal Y begin life as a tadpole and change form as they develop

Answer:

it is c, for those who want an answer fast

Explanation:

What is the molarity of a solution made by dissolving 5 mol of H3PO4 in 0.05 L of solution?
Need Fast!

Answers

Answer:

"100" is the molarity of solution.

Explanation:

The given values are:

Moles of solute,

= 5 mol

Liters of solution,

= 0.05 L

Now,

The molarity of a solution will be:

=  [tex]\frac{Moles \ of \ solute}{Liters \ of \ solution}[/tex]

On substituting the values, we get

=  [tex]\frac{5}{0.05}[/tex]

=  [tex]100[/tex]

How many grams of oxygen are needed to burn 10.0 moles of C3H8?

Answers

1.6 kilograms I think :)

Which best describes why animals need the energy in food?
A for growth and body repair
B for transpiration and growth
C for body repair and photosynthesis
D for cell reproduction and transpiration

Answers

A for growth and body repair

Answer:

A for growth and body repair

Explanation:

B, C, and D don't have anything to do with animals.

Other Questions
I WILL GIVE YOU BRAINLYEST!!True or False: You should start your thesis statement with "I believe," thenfollowed by your reasons. 3(4x+6)=-4What property did you use to solve this problem? what is the domain and range y=x^(2)+10x+26 Carla is using geometry software to design a stained-glass window. She begins by drawingthe lines and angles shown. If Carla adjusts the diagram so that Z1 and 23 aresupplementary angles, what is mZ2? Explain. Name the correct name of each plate with the numbers above. How are plant cells different from animal cells?Select the three correct statements. A. Their cells have cell walls. B. They can convert the sun's energy into food. C. They have chloroplasts. D. They can move around. E. They cannot make their own food.pls help this is due today Small pieces of sand hitting the side of a mountain and weathering the rock is an example of what type of weathering? In the 1700s, explorers and missionaries built a chain of (1) in California. They wanted to convert Native Americans to (2) . When Mexico won its independence from (3) , California became a (4) in the new nation. Mexican settlers set up large estates called (5) . (6) worked on the ranchos. The owners, or (7) , treated them almost as (8) . In the 1840s, more Americans came to (9) . They were attracted by the mild (10) and the rich natural (11) . Many Americans thought that California should become a (12) . They wanted the United States to reach the (13) Ocean. need some help please Tyler stands facing a tree that is 9 meters tall. he places a straight stick on the ground at his feet, angles it up until it points to the top of the tree, and measures the angle as 55 degrees. how many meters away is he standing from the tree? If A (4,3) is rotated around the origin to become A' (-3, 4), what kind of rotation did it go through?A 270 CounterclockwiseB 270 ClockwiseC90 ClockwiseD 180 Clockwise In huck Finn why did the people return to the kings show? Which of the following statements about physiological age and chronological age is TRUE?A.Physiological age and chronological age are always the same.B.Physiological age can be lower than, the same as, or higher than chronological age.C.Physiological age can be lower than chronological age, but never higher.D.Physiological age cannot be altered, but chronological age can change based on lifestyle choices.Please select the best answer from the choices provided.ABCDWILL MAKE BRAINLIEST FOR BEST ANSWER DONT ANSWER FOR POINTS GIVE GOOD ANSWER PLS Use the graph to write a linear function that relates y to x Why was it important that there was no Maryland session? Price of ETH coin right now?Don't answer if u don't know. What are your plans for this summer Will give brainlist Give suggestion for next question (optional) A jar of sweets has 84 M&M sweets and 28 jelly bean sweets. What percent of the sweets arejelly bean? please answer ill give brainly I NEED HELP FAST! Which of the following sets of numbers could not represent the three sides of a triangle?