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
zvonat [6]
2 years ago
11

What is the specific heat of a substance if a mass of 10.0 kg increases in temperature from 10.0°c to 70.0°c when 2,520 j of hea

t is applied? use q equals m c subscript p delta t.. 0.00420 j/(gi°c) 0.00661 j/(gi°c) 238 j/(gi°c) 252 j/(gi°c)
Chemistry
2 answers:
Oliga [24]2 years ago
8 0

Answer:

4.2 j/kg-C      =  .0042 j / (g-C)

Explanation:

Specific heat units are    j / kg-C

   2520 J  / [ (10 kg)(70-10 C)]   = 4.2   j / kg-C

LekaFEV [45]2 years ago
5 0

Answer:

0.00420

Explanation:

The equation is Q=mc(T(final)-T(initial), where c is the specific heat, Q is heat supplied, m is mass, T(final) is final temperature and T(initial) is initial temperature (you'll see this written as delta T, which means change in temperature).

2520 = Q

m = 10.0kg; answer choices are in g, not kg, so multiply by 1000 to get m in g; m = 10000 g

Plug in the values you have and solve for c.

2520=(10000)(c)(70-10)

2520=600000c

c=0.0042 j/(gc)

You might be interested in
Speed-48km time-5hour​
Rom4ik [11]

Answer:

Whats the question?

Explanation:

7 0
2 years ago
A mixture of oxygen hydrogen and nitrogen gas is exerts a total pressure of 282K PA if the partial pressures of oxygen and hydro
sergiy2304 [10]
Glgggggggggggggggggggggggg
7 0
3 years ago
Read 2 more answers
Vinegar produces carbon dioxide gas when combined with baking soda. Physical or chemical property?
Bas_tet [7]

Answer:

it's a chemical property

5 0
3 years ago
Determine the mass of 5.20 moles of c6h12
Gwar [14]
Mass is equal to moles x molar mass, and the molar mass of C6H12 is 84, therefore the mass is 436.8 g, but 437 rounded to correct significant figures
5 0
3 years ago
Describe how water molecules interact with sodium chloride molecules in order for water to dissolve salt.
Phantasy [73]

Answer:

Sodium chloride is an ionic salt that completely dissociates in water.

Explanation:

Sodium chloride in water dissociates according to the equation.

NaCl (aq) → Na + (aq) + Cl- (aq)

While water stays in balance according to the equation

2H2O (l) ⇄ H3O+(aq)  +  OH-(aq).

By dissociating the solute in the solvent, the water molecules pick up the sodium cations as well as the chloride anions to break the bonds in the salt crystals and thus produce the dissolution

If the ions are analyzed separately, we see that Na + interacts with water, so it would be producing sodium hydroxide, releasing protons.  

If the reaction goes in the sense of products, the Na + would increase the concentration of [H +], however being a neutral salt the pH does not vary from 7, so the reaction would never go in the sense of products, but only reagents. That's why as the sodium hydroxide is a strong base, it only promotes the formation of water and the cation.

Na+  +  H2O  ←  NaOH  +  H+

The same situation occurs with chloride, since no matter how much you want to form hydrochloric acid, it dissociates by promoting the formation of water plus the corresponding anion. Na + and Cl- act as too weak conjugate acid and base, so the reaction would never go in the direction of products

Cl-  +  H2O  ←  HCl  +  OH-

3 0
3 years ago
Other questions:
  • How many molecules are there in a 42.3 g sample of water
    15·1 answer
  • What is not true of a strong acid?
    15·2 answers
  • Draw the products of the complete hydrolysis of a ketal. draw all products of the reaction.
    10·2 answers
  • An illegal drug stimulates the parasympathetic nervous system, causing the user to appear tranquilized. What could indicate to a
    5·1 answer
  • Why do we not see a lunar
    14·1 answer
  • Which ion will oxidize Fe? 1) Zn+2 2)Ca+2 3) Mg+2 4) Cu+2
    8·1 answer
  • I searched it up but it keeps saying chemical energy, but in the option doesn’t have it...I’m torn between B and C...helppppp!!!
    6·1 answer
  • Since the action and reaction are exactly equal and oppositely directed , how can there be a net force on an object ?
    11·1 answer
  • Classify each as a physical or chemical change.
    7·1 answer
  • Intermolecular forces do not have any effect on determining the physical properties of
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!