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
vazorg [7]
3 years ago
14

How much heat energy is required to raise the temperature of 0.368 kg of copper from 23.0 ∘C to 60.0 ∘C? The specific heat of co

pper is 0.0920 cal/(g⋅∘C)
Chemistry
1 answer:
Dmitriy789 [7]3 years ago
7 0
23.0 + 60.0 = 83.0° C heat energy is required to raise
You might be interested in
How many minutes will it take to plate out 4.50 g of Cu from a solution of Cu(NO3)2 (aq) onto the cathode of an electrolytic cel
ipn [44]

Answer:

It will take 28.5 minutes

Explanation:

<u>Step 1: </u>Data given

Mass of Cu = 4.50 grams

8.00 A of current are used

Molar mass of Cu = 63.5 g/mol

Step 2: Calculate time needed

Cu2+ →Electricity → Cu

we notice a flow of 2 electrons ⇒ This means the Faraday constant = 2F

Since Molar mass of Cu is 63.5 g/mol

63.5 grams of Cu is deposited by 2*96500 C

4.50 grams of Cu ((2*96500)/63.5)  * 4.50 = 13677.17 C

Q = It

13677.17 = 8t*60 seconds

t = 28.5 minutes

3 0
3 years ago
Which is an example of a compound ? sand , gold , water , iodine
OleMash [197]
Which is an example of a compound? sand, gold, water, or iodine? well, the answer is water, water is a compound.
4 0
3 years ago
Read 2 more answers
How many dozen (dz) eggs are needed to make 12 muffins? What about 15.5
NARA [144]

Answer:

I think its 1.2 cause I divided 15.5 with 12 and got 1.2 as an answer

8 0
3 years ago
Read 2 more answers
An element is a pure substance in which there are how many kinds of atoms?
Ostrovityanka [42]

Answer:

One

Explanation:

An element is a pure substance in which there are only one kind of atom. Elements are distinct substances that cannot be split up into simpler substances.

Such substances consists of only one kind of atom. There are over a hundred known elements to date.

Generally, as a pure substance, the composition of an element is definite and they are homogenous in all parts.

8 0
3 years ago
Determine the ph of a 0.18 m h2co3 solution. carbonic acid is a diprotic acid whose ka1 = 4.3 × 10-7 and ka2 = 5.6 × 10-11. dete
oee [108]
Answer is: ph value is 3.56.
Chemical reaction 1: H₂CO₃(aq) ⇄ HCO₃⁻(aq) + H⁺(aq); Ka₁ = 4,3·10⁻⁷.
Chemical reaction 2: HCO₃⁻(aq) ⇄ CO₃²⁻(aq) + H⁺(aq); Ka₂ = 5,6·10⁻¹¹.
c(H₂CO₃) = 0,18 M.
[HCO₃⁻] = [H⁺<span>] = x.
</span>[H₂CO₃] = 0,18 M - x.
Ka₁ = [HCO₃⁻] · [H⁺] / [H₂CO₃].
4,3·10⁻⁷ = x² / (0,18 M -x).
Solve quadratic equation: x = [H⁺] =0,000293 M.
pH = -log[H⁺] = -log(0,000293 M).
pH = 3,56; second Ka do not contributes pH value a lot.


5 0
3 years ago
Other questions:
  • Ammonium hydroxide and sulfuric acid react to produce?
    8·1 answer
  • he standard enthalpies of formation for S (g), F (g), SF4 (g), and SF6 (g) are +278.8, +79.0, -775, and -1209 kJ per mole, respe
    13·1 answer
  • If 4.04 g of N combine with 11.46 g O to produce a compound with a formula mass of 108.0 amu, what isn’t the molecular formula o
    9·1 answer
  • When two hydrogen nuclei combine to form one helium nucleus, nuclear fusion has taken place.. . True or False
    11·2 answers
  • Why does a biker have to peddle harder to travel at a constant speed into the
    7·1 answer
  • When gases are treated as real, via use of the van der Waals equation, the actual volume occupied by gas molecules ________ the
    9·1 answer
  • State two methods to increase the rate of the chemical reaction and explain
    13·1 answer
  • How much energy is required to completely vaporize 250 grams of liquid water that is already at 100 degrees Celsius? Show your w
    12·1 answer
  • Ok, I need helpies! .__.
    11·1 answer
  • Which two features are used to describe matter?<br> om
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!