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
Basile [38]
3 years ago
10

A 50.0 g sample of an unknown substance, initially at 20.2 °C, was heated with 1.55 kJ of energy. The final temperature of the s

ubstance was 125.0 °C. Determine the specific heat of this substance.
Chemistry
1 answer:
valentina_108 [34]3 years ago
7 0

Answer:

0.296j/g⁰c

Explanation:

we have the following information from this question before us.

mass iv substance = 50grams

we have initial temperature ti = 20.2⁰c

final temperature = 125⁰c

the energy that was provided = 155kj

we proceed with this formula

energy = mcΔT

1.55x10³ = 50 x c x (125-20.2)

1.55x10³ = c x 50gm x 104.8k

we divide through to get c

c = 1.55x10³/50g x 104.8

c = 0.296J/g⁰c

that is the specific heat of this substance.

thank you!

You might be interested in
What does mechanical digestion mean ?
Alex787 [66]

Answer:

Explanation:

Mechanical digestion involves physically breaking down food substances into smaller particles to more efficiently undergo chemical digestion. The role of chemical digestion is to further degrade the molecular structure of the ingested compounds by digestive enzymes into a form that is absorbable into the bloodstream.

4 0
3 years ago
What is the structure of 3_methyl cyclopropane
lisabon 2012 [21]

Answer:

structure formula C3H5CH3

6 0
3 years ago
Read 2 more answers
I will make you brainiest! In this analogy, which part of the lunar cycle is waning - from the new moon to the full moon or the
Veronika [31]

Answer:

Explanation:

After the glorious appearance of Full Moon, the lunar shape starts to wane, meaning it gets smaller. It's visible later at night and into the early morning, and we see a steadily shrinking shape of the lunar surface that's being lit up.

7 0
3 years ago
Which material is typically used as a thermal insulator
Citrus2011 [14]

Answer: plastic, wood, rubber

Explanation:

5 0
3 years ago
Read 2 more answers
What is the average atomic mass of sodium
Alenkasestr [34]
<span>22.989769 u ± 2 × 10^-8 u</span>
4 0
3 years ago
Other questions:
  • A metal weighing 7.101 g is placed in a graduated cylinder containing 33.0 mL of water. The water level rose to the 37.4 mL mark
    6·1 answer
  • An atom with 39 protons and a mass number of 89 what is the number of neutrons
    14·1 answer
  • Identify the NMR term that corresponds to each description.
    6·1 answer
  • What can you conclude about these two reactions based on the chemical equations? Reaction A: 6CO2(g) + 6H2O(l) + sunlight ? C6H1
    5·1 answer
  • What process at the surface of the Earth is part of the formation of sedimentary rocks?
    9·1 answer
  • 50 points in total i believe!<br> Why does chocolate melt when it gets warm?
    12·1 answer
  • The binding energy of electrons in a metal is 193 kJ/mol. Determine the threshold frequency for this metal.
    11·1 answer
  • Arrange the isotopes of chlorine and sulfur in order of decreasing number of neutrons. Rank the isotopes from most to fewest neu
    5·1 answer
  • How many metals, nonmetals and metalloids are there in the periodic table?
    8·2 answers
  • Does the pH increase or decrease, and does it do so to a large or small extent, with each of the following additions?(c) 5 drops
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!