How much heat, in kilojoules, must be added to a 580 g aluminum pan to raise its temperature from 25∘C to 150∘C?
---The specific heat capacity for aluminum is 0.897 J/g∘C.
---Round the answer to two significant figures.

Answers

Answer 1

Answer:

Q = 65 kJ

Explanation:

Given that,

Mass, m = 580 g

Initial temperature, [tex]T_i=25^{\circ} C[/tex]

Final temperature, [tex]T_f=150^{\circ} C[/tex]

The specific heat capacity for aluminum is 0.897 J/g°C

We need to find the heat added to the aluminium pan so that its heat raised to a temperature from 25°C to 150°C. It is given by :

[tex]Q=mc\Delta T\\\\Q=580\ g\times 0.897\ J/g^{\circ} C\times (150-25)^{\circ} C\\\\Q=65032.5\ J[/tex]

or

Q = 65.03 kJ

or

Q = 65 kJ

Hence, the heat added to the pan is 65 kJ.


Related Questions

Order: Vitamin K (Aquamephyton) 1 mg IM x 1 dose Newborn: Weight 4 kg Supply: 10mg/mL vial How many mLs would be given

Answers

Answer:

Volume(ml) of drug required = 0.1 ml

So, medicine is safe for this child.

Explanation:      

Given:

Desired dose (D)= 1 mg

Dose in hand (H) = 10 mg

Quantity (Q) = 1 ml

Computation:

Volume(ml) of drug = [Desired medicine / medicine in hand] Quantity.

Volume(ml) of drug required = [1/10]1

Volume(ml) of drug required = 0.1 ml

So, medicine is safe for this child.

Which of the following is an example of work: bowling or reading? How do you know?

Answers

Both.. I know because reading you have to focus on the book and actually make your mind read the book and process what you are reading... Bowling is also an example of work because you have to focus on the ball and focus on where you roll the ball
I hope this helps! HAVE A GREAT DAY!!

What is the correct order of star colors from hottest to coolest?

white, yellow, red, blue
yellow, orange, white, red
red, orange, yellow, blue-white
blue, white, yellow-white, orange

Answers

Answer: The answer is blue, white, yellow-white, orange.

Explanation: These are the two basic reasons for different star colors:

Temperature – cooler stars are red, warmer ones are orange through yellow and white. The hottest stars shine with blue light

Age – As a star ages it produces different chemicals which burn at different temperatures. We can use a star’s color to show its relative age

Answer:

OR D

Explanation:

D on edge 2020

Explain how scientists know the composition of the bottom layer of the cust?

Answers

Answer: Scientists learn about the layers deep within the Earth's crust by studying how seismic waves travel through the Earth. If there is an earthquake somewhere, seismagraphs in many locations will record it.

HOPED IT HELPED IF IT DID CAN I HAVE BRAINLIEST AND GOOD LUCK.

The chemical formula for calcium chloride is

Answers

Answer: anhydrous CaCl 2 :0H 2 O

monohydrate CaCl 2 :1H 2 O

a di-hydrate CaCl 2 :2H 2 O

Explanation:

A hawk swoops down and catches a squirrel. The squirrel provides energy for the hawk. What happens to the rest of the matter?

Answers

Answer:

The rest of the food molecule is converted to other carbon molecules. The hawk cannot consume all the parts of the squirrel. It will feed as a carnivore on the fleshy part of its prey. The matter is converted to other carbon molecules

Explanation:

Which of the following is an example of a pure substance?
A. beer
C. halo-halo
B. ethyl alcohol
D. silver spoon​

Answers

Sliver spoon is an example of a pure substance

Which sample matter is a pure substance

Answers

Answer:

Explanation:

If you have options, could you please tell me so I can further help you. If you just need an example then

Examples of pure substances include iron, steel, and water

Hope this helps (:

Answer

These are the following answers

A) zinc oxide

B) sugar dissolved in water

C) pond water

D) soil

Explanation:

How many protons, neutrons, and electrons are in C -14

Answers

6 protons, 8 neutrons, and 6 electrons

100 POINTS HELP!!!!!!!!!!!!!!!!!!!!

Answers

Given that,

Mass number of Ge = 70

Then,

Atomic number of Ge = 32

No. of protons = 32

No. of electrons = 32

No. of neutrons,

→ 70 - 32 = 30

Answer:

30 is correct

Explanation:

70 - 32 = 30 mark as brainliest

A sample of an ideal gas has a volume of 2.38 L at 283 K and 1.03 atm. Calculate the pressure when the volume is 1.97 L and the temperature is 307 K.

Answers

Gas Has A Volume Of 2.21 L At 287 K And 1.11 Atm. Calculate The Pressure When The Volume Is 1.03 L And The Temperature

Explanation:

Calculate the number of molecules in 2.00 moles H2S.
Express your answer numerically in molecules.

Answers

Answer:

The answer is

1.204 × 10²⁴ molecules

Explanation:

The number of molecules can be found by using the formula

N = n × L

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

N = 2 × 6.02 × 10²³

We have the final answer as

1.204 × 10²⁴ molecules

Hope this helps you

What else heats the Earth when Permafrost melts?

Answers

Answer:

As those microbes thrive, they will release large amounts of methane, another climate-warming greenhouse gas. ... By the year 2100, they estimated, thawing permafrost could release enough carbon dioxide and methane to raise the average global temperature by 0.13 to 0.27 degree C (0.23 to 0.49 degree F). pls mark me brainlest :(

Explanation:

What type of bond is present between two atoms of zinc in a nickel

Answers

Answer:

Pure covalent

Explanation:

To know the type of bond between two atoms you must find the electronegativity difference of them:

If electronegativity difference is:

< 0.4: Pure covalent.

Between 0.4 and 1.8: Polar covalent.

> 1.8: Ionic.

The electronegativity of Zn is 1.65 and Ni is 1.91. Electronegativity difference is:

1.91 - 1.65 =  0.26

That means the type of bond is:

Pure covalent

What is the total pressure of a container in kpa if the partial pressures are 1.25 atm and 66.7 psi?

Answers

Answer:

586 kpa(kilopascal/1000 pascals)

Explanation:

given 1.24 atm(standard atmosphere), and 66.7 psi(pound force per square inch).

To find the total pressure we should use dalton's law of partial pressures which is the sum of the pressures of each individual gas.

then we convert them to pascals and divide by 1000 to get the measurement in kilopascal.

knowing that 1 atmosphere is proportional to around 14.696 psi. We can multiply our given measure of atm by that and sum it by psi like so. 1.24×14.6959 = 18.22298.

Then,

18.22298+ 66.7 = 84.92298

psi.

Since 1 psi is proportional to around 6894.76 pascals. 1 psi will be 68.9476 kilopascal. 84.92298 * 6.89476 = 585.523336 ≈ 586

A deck of cards has dimensions 8.9cm x 5.72cm x 1.82 cm. What is the volume of the deck in cubic centimeters?

Answers

Answer:

92.65256 cm^3

Explanation:

To find this, we can simply multiply all three dimensions to get the answer in cubic centimeters, and we get the answer above. If you want to be more specific, we can go by the sigfig rule and the answer would be rounded to 93 cm^3.

Which would most likely be the pH of a highly-corrosive acid? 1 5 8 11

Answers

Answer:

it is 1 because of it is below 7 then it will be dangerous for humans

The pH of the highly corrosive acid, given the data from the question is 1

What is pH ?

This is simply a measure of the acidity / alkalinity of a solution.

The pH measures the hydrogen ion concentration while the pOH measures the hydroxide ion concentration

pH scale

The pH scale is a scale that gives an understanding of the variation of the acidity / alkalinity of a solution.

The scale ranges from 0 to 14 indicating:

0 to 6 indicates acid 7 indicates neutral 8 to 14 indicate basic

NOTE: The lesser the pH of a substance, the more acidic (corrosive) it is and the greater the pH of the substance, the less acidic (corrosive) it is.

With the above information about pH, we can conclude that the pH of the highly corrosive acid, given the data is 1

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What is the density of a substance with a mass of 15.0 g and a volume of 5.0 mL?
A. 0.33 g/mL
B. 3.0 g/mL
C. 10.0 g/mL
D. 20.0 g/mL

Answers

Answer:

B. 3.0 g/ml

Explanation:

density formula: mass/volume

15/5=3

The phase of matter most likely to be present at absolute zero would be:

A)
plasma
B)
gas
C)
liquid
D)
solid

Answers

Answer:

D solid

Explanation:

Which element is a gas?

A.Br
B.C
C.B
D.Be

Answers

The answer should be (B) C

Answer:

A.Br

Explanation:

Bromine is the only gas from the choices provided. It belongs to the group of halogens, group 7.

It has atomic number of 35 and it belongs to the p-block on the periodic table.

C is carbon and carbon is a solid matter B is boron and boron is a metalloid Be is beryllium and silvery white metal

Only Bromine is the gas from the given choices. It is fuming liquid and when exposed, it becomes gaseous.

3. Using the periodic table,
What is the average atomic mass of bromine?
What is the average atomic mass of magnesium?
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Answers

Answer:

79.904 u for bromine

24.305 u

Not really sure what the 3rd question is asking

Explanation:

What molar concentration of hydrochloric acid (HCl) is needed to prepare a disinfectant solution with a pH

Answers

Answer:

The correct approach is "3.1×10⁻³ M".

Explanation:

As we know,

[tex]pH=-log[H_{3}O^+][/tex]

[tex]pH=2.5[/tex]

[tex][H_{3}O]^+= \ ?[/tex]

Now,

⇒ [tex]-log[H_{3}O]^+=2.5[/tex]

⇒ [tex][H_{3}O]^+=10^{-2.5}[/tex]

⇒             [tex]=3.1\times 10^{-3} \ M[/tex]

So that the needed molar concentration of HCL will be:

= [tex]3.1\times 10^{-3} \ M[/tex]

why some metals are more dense than others

Answers

This is due to the tightly packed crystal lattice of the metallic structure. The larger the amounts of delocalized electrons, the stronger the metallic bonds are.

An antacid tablet contains 640.0 mg of magnesium oxide per tablet.
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Answers

Answer:

317.6 mL

Explanation:

Step 1: Write the balanced neutralization equation

MgO + 2 HCl ⇒ MgCl₂ + H₂O

Step 2: Calculate the mass corresponding to 640.0 mg of MgO

The molar mass of MgO is 40.30 g/mol. The moles corresponding to 640.0 mg (0.6400 g) of MgO are:

0.6400 g × (1 mol/40.30 g) = 0.01588 mol

Step 3: Calculate the moles of HCl that react with 0.01588 moles of MgO

The molar ratio of MgO to HCl is 1:2. The moles of HCl are 2/1 × 0.01588 mol = 0.03176 mol

Step 4: Calculate the volume of 0.1000 M HCl that contains 0.03176 moles

0.03176 mol × (1 L/0.1000 mol) = 0.3176 L = 317.6 mL

How much space does 2 x 1022 atoms of copper take up?


How much space do 2 x 1022 copper pennies take up, using examples from the animation?

Answers

Answer:

2044

Explanation:

how many orbitals are in 6s sublevel

Answers

Each sublevel can have 6 electrons , basically 2 s orbital electrons 6 p orbitals electrons 14 f orbital electrons

Hope this helps.. if not sorry

The azimuthal quantum number and magnetic quantum number corresponds to the s orbital is zero. Hence, there is only one m value and thus contains one orbital only.

What are quantum numbers ?

The quantum numbers are numbers used to describe the position of an electron within an orbital. The principal quantum number n indicates the main energy level. The azimuthal quantum number l indicates the shape and type of orbital which have values from 0 to n-1.

The magnetic quantum number m indicates the number of orbitals for a sublevel. m can have values from + l to -l. The fourth quantum number s is called spin quantum number. For an electron the spin quantum number can be +1/2 or -1/2.

The n value for the 6s sublevel is 6. The azimuthal quantum number , l for an s orbital  is zero. So its m quantum number has only one value that is zero. Hence, there is only one orbital in 6s sublevel.

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20 POINTS A group of students is conducting a density experiment with two blocks. Block 1 has more mass and less volume than Block 2. Based on this information, the student can correctly conclude that *


both blocks have densities less than water's density

both blocks have densities greater than water's density

Block 1 has a higher density than Block 2

Block 1 has a lower density than Block 2

Answers

Answer:

Block 1 has a higher density then block 2

Explanation:

Answer:

Yep, the correct answer is C. Block 1 has a higher density than block 2.

Explanation:

Scientists utilize models for a variety of different purposes, but each type of scientific model has limitations. What might
be a limitation of existing solar system models?
a. They are not based on experimentation.
b. They are used for prediction.
C. They cannot be changed.
d. They are based on current knowledge,
Please select the best answer from the choices provided
А
B
С
D

Answers

C. They cannot be changed.

I saw this on quizlet, hope this helps!

Answer:

D.They are based on current knowledge.

Explanation:

Guy above me is wrong

Why is H2S called an analytical agent?​

Answers

Answer:

Hydrogen sulfide is an newly recognized signical molecule with very potent cytoprotective actions.

A chemist working as a safety inspector finds an unmarked bottle in a lab cabinet. A note on the door of the cabinet says the cabinet is used to store bottles of pentane, tetrahydrofuran, carbon tetrachloride, methyl acetate, and ethanolamine. The chemist plans to try to identify the unknown liquid by measuring the density and comparing to known densities. First, from his collection of Material Safety Data Sheets (MSDS), the chemist finds the following information: liquid density pentane tetrahydrofuran carbon tetrachloride methyl acetate ethanolamine Next, the chemist measures the volume of the unknown liquid as and the mass of the unknown liquid as . Calculate the density of the liquid. Round your answer to significant digits. Given the data above, is it possible to identify the liquid

Answers

Answer:

The liquid can be identified

Explanation:

Given that density is defined as mass per unit volume.

We have the following information regarding the unknown liquid;

Mass= 1.40 kg = 1400 g

Volume = 1378 cm^3 = 1378 ml

Density of unknown liquid = 1400/1378 = 1.012 g/ml this is approximately 1.0 g/ml

It is possible to identify the liquid, the liquid is ethanolamine

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