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
aleksley [76]
2 years ago
12

A sample of an unknown substance has a mass of 0.465 kg. If 3,000.0 J of heat is required to heat the substance from 50.0°C to 1

00.0°C, what is the specific heat of the substance? Use mc008-1.jpg. 0.00775 J/(gi°C) 0.0600 J/(gi°C) 0.129 J/(gi°C) 0.155 J/(gi°C)
Chemistry
2 answers:
Aleksandr-060686 [28]2 years ago
5 0

Answer : Option C) 0.129 J/g°C

Explanation : The given information has about Q which is heat energy (3,000 J);

m is the mass of a substance (0.465 kg);

∆T is the measure for the change in temperature (100 - 50) = 50°C;

To find the specific heat of the given unknown substance, we have to use the formula as;

q = m x C x ∆T; where c is the specific heat;

So, substituting the above values in this equation we get;

C = q/ (m x ∆T)

Therefore, it will be C = 3000 / (0.465 X 50) = 129.0 J/Kg°C

But we want the answer in grams, not in kilograms;

So, it will be 129.0 / 1000 = 0.129 J/g°C

Therefore, the specific heat of the unknown substance is 0.129 J/g°C

White raven [17]2 years ago
3 0

Answer:

C on edge

Explanation:

You might be interested in
How many grams are in 7.32 x 1023 molecules of potassium carbonate (K2CO3)?
tiny-mole [99]

(I leave off the x10^23 because they both will divide out)    Use your per

7 0
2 years ago
How can people conserve water at home? rinsing dishes with cool water instead of warm water
Y_Kistochka [10]
By not letting the sick run while doing other things like scrubbing dishes..
7 0
3 years ago
What is the mass in grams of a pure iron cube that has a volume of 4.60 cm3
yuradex [85]
In order to determine the mass of a substance given the volume, we require the density. The density of iron is 7.87 grams/cm³

Now,

Density = mass / volume

Mass = density * volume

Mass = 7.87 * 4.6

36.2 grams of iron are present in the cube
5 0
3 years ago
2. Which electron dot structure represents a nonpolar molecule?
TEA [102]

Answer:

it's d. H:C:C:F

5 0
3 years ago
A chemist prepares a solution of sodium chloride(NaCl) by measuring out 25.4g of sodium chloride into a 100ml volumetric flask a
labwork [276]

Answer: 4 molL-1

Explanation:

Detailed solution is shown in the image attached. The number of moles of NaCl is first obtained. Since the molarity must be in units of molL-1, the volume is divided by 1000 and the formula stated in the solution is applied and the answer is given to one significant figure.

5 0
2 years ago
Read 2 more answers
Other questions:
  • Given the chemical formula, how is this substance MOST LIKELY classified? A) atom B) compound C) both atom and compound D) neith
    7·1 answer
  • If this pattern is annual, we would expect area D. to have the greatest extremes in average annual temperatures because A) of it
    15·2 answers
  • When a gas is cooled the particles is moving fast or slowly
    13·1 answer
  • Which of these is a difference between a single skin cell and the skin tissue that covers an entire hand?
    7·2 answers
  • Help
    13·1 answer
  • What is the compound NH3
    9·2 answers
  • Looking at the map, what ideas do you have about why the trash is "trapped" in this location
    7·1 answer
  • Hey! Could someone explain how to do this? Thanks!
    11·1 answer
  • Consider the following endothermic reaction:
    11·1 answer
  • Part G
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!