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
frutty [35]
3 years ago
11

You use a 15.0 gram piece of aluminum foil to cover a pan in the oven. The specific heat for aluminum is c = 0.900 J/g o C. If t

he temperature is raised from 25 o C to 350 o C, how much heat was absorbed?
Chemistry
2 answers:
SVEN [57.7K]3 years ago
8 0

Answer:

Best regards.

Explanation:

Hello,

In this case, we relate the heat, mass, heat capacity and temperature when a thermal change is carried out as shown below:

Q=mCp(T_{final}-T_{initial})

Now, for the given data, we compute the absorbed heat (due to the temperature increase) as follows:

Q=15.0g*0.900\frac{J}{g^oC}*(350^oC-25^oC) \\\\Q=4.39x10^3J=4.39kJ

Best regards.

Vadim26 [7]3 years ago
6 0

Answer:

4,387.5 J was absorbed

Explanation:

Calorimetry is the part of physics that is responsible for measuring the amount of heat generated or lost in certain physical or chemical processes.

In this way, there is a direct proportional relationship between heat and temperature. Thus, the amount of heat received or transferred by a body when it undergoes a temperature variation (Δt) without there being a change of physical state (solid, liquid or gaseous) is calculated using the following expression:

Q = c * m * ΔT

Where Q is the heat exchanged by a body of mass m, made up of a specific heat substance c and where ΔT is the temperature variation.

In this case:

  • Q= ?
  • c= 0.900 \frac{J}{g*C}
  • m= 15 g
  • ΔT=Tfinal - Tinicial= 350 °C - 25 °C= 325 °C

Replacing:

Q= 0.900 \frac{J}{g*C} *15 g * 325 °C

Q=4,387.5 J

<u><em>4,387.5 J was absorbed</em></u>

You might be interested in
The volume of a pond being studied for the effects of acid rain is 35 kiloliters (kL). There are 1,000 liters (L) in 1 kL and 1
Lerok [7]

Answer:

35,000,000,000 mL

Explanation:

You first multiply 35 times 1000.

35,000 L

Now you multiply 35,000 times 10^6

35,000,000,000 mL

4 0
3 years ago
The nucleus of an element contains more protons then electrons.this is referred to a?
dedylja [7]

Answer:

ion

However atoms may gain or lose electrons in ordinary chemical reactions. If an atom has the same number of electrons as protons, it is a neutral atom. If it has a net charge, (more or less electrons than protons) it is an ion. If it has more electrons than protons it has a net negative charge and is known as an anion.

Explanation:

3 0
3 years ago
PLEASE ANSWER AS QUICKLY AS POSSIBLE THANK YOU SO MUCH
Harlamova29_29 [7]

Answer:

This description needs a unit describing the system of measurement.

6 0
2 years ago
Why do the atoms in a piece of copper metal have no net charge?
Marat540 [252]

Answer;

-The charges of the positive and negative copper ions cancel each other out.

Explanation;

-A normal atom has a neutral charge with equal numbers of positive and negative particles.That means an atom with a neutral charge is one where the number of electrons is equal to the atomic number.

-Atoms are electrically neutral because they have equal numbers of protons (positively charged) and electrons (negatively charged). If an atom gains or loses one or more electrons, it becomes an ion. If it gains one or more electrons, it now carries a net negative charge, and is thus anionic.

6 0
3 years ago
Read 2 more answers
A sample of 0.281 gg of an unknown monoprotic acid was dissolved in 25.0 mLmL of water and titrated with 0.0950 M NaOH NaOH. The
tensa zangetsu [6.8K]

Answer:

98.6 g/mol.

Explanation:

Equation of the reaction

HX + NaOH--> NaX + H2O

Number of moles = molar concentration × volume

= 0.095 × 0.03

= 0.00285 moles

By stoichiometry, 1 mole of HX reacted with 1 mole of NaOH. Therefore, number of moles of HX = 0.00285 moles.

Molar mass = mass ÷ number of moles

= 0.281 ÷ 0.00285

= 98.6 g/mol.

5 0
3 years ago
Other questions:
  • a small cube of aluminum measures15.6mm on a side and weights 10.25g. What is the density of aluminum in g/cm3
    12·1 answer
  • pleaaaaaaaaaaaaaaaase answerrrrrrr quickkkkkkkkkkk am scared can somebody write me a small kinda article about fractional distil
    13·1 answer
  • Definition: The phase of matter where particles at extremely high temperatures become ionized. Example: The state of matter of t
    12·1 answer
  • During the rock cycle, rocks get broken apart by weathering, carried along by erosion, and eventually deposited in a body of wat
    8·2 answers
  • What metric measurement is similar to a mile?
    10·2 answers
  • How was a first person how made earth
    14·1 answer
  • How many moles are present in 25.0 grams of potassium permanganate, KMnO,? ​
    15·1 answer
  • Un aerosol contine 350 ml de gas en su interior . Su presion es de 5 atm. Un estudiante coloca un arosol en una bolsa plastica y
    14·1 answer
  • Calculate the pOH of this solution. pH = 1.90 pOH =
    14·2 answers
  • Number 5 plsssssssss
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!