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
kicyunya [14]
3 years ago
14

Find the specific heat of an unknown material with an initial temperature of 20°C, when 5000 Joules are applied to a 50 gram sam

ple and the final temperature is 70°C
Chemistry
1 answer:
xxTIMURxx [149]3 years ago
8 0

Answer:

2J/g°C

Explanation:

Q = 5000J

Initial temperature (T1) = 20°C

Final temperature (T2) = 70°C

Specific heat capacity (c) = ?

Heat energy (Q) = mc∇T

Q = mc∇T

Q = mc(T2 - T1)

5000 = 50 × c × (70 - 20)

5000 = 50c × 50

5000 = 2500c

c = 5000 / 2500

c = 2J/g°C

The specific heat capacity of the substance is 2J/g°C

You might be interested in
Given the following unbalanced equation:
antiseptic1488 [7]
<h3>Answer:</h3>

11.84 mol CoF₂

<h3>General Formulas and Concepts:</h3>

<u>Math</u>

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

<u>Chemistry</u>

<u>Atomic Structure</u>

  • Moles

<u>Stoichiometry</u>

  • Using Dimensional Analysis
  • Analyzing Reactions RxN
<h3>Explanation:</h3>

<u>Step 1: Define</u>

[RxN - Unbalanced] CoCl₂ + F₂ → CoF₂ + Cl₂

[RxN - Balanced] CoCl₂ + F₂ → CoF₂ + Cl₂

[Given] 11.84 moles CoCl₂

[Solve] moles CoF₂

<u>Step 2: Identify Conversions</u>

[RxN] 1 mol CoCl₂ → 1 mol CoF₂

<u>Step 3: Stoich</u>

  1. [DA] Set up:                                                                                                       \displaystyle 11.84 \ mol \ CoCl_2(\frac{1 \ mol \ CoF_2}{1 \ mol \ CoCl_2})
  2. [DA] Multiply/Divide [Cancel out units]:                                                          \displaystyle 11.84 \ mol \ CoF_2
7 0
3 years ago
What does collide mean
Gala2k [10]

Answer:

hit with force when moving.

"she collided with someone"

Similar:

crash (into)

come into collision (with)

bang (into)

slam (into)

impact (with)

hit

strike

run into

meet head-on

smash into

smack into

cannon into

plow into

bump into

crack into/against

knock into

dash against

barrel into  -

come into conflict or opposition.

"in his work, politics and metaphysics collide"

Explanation:

7 0
2 years ago
The physical properties of a substance containing the bonded atoms y and z ?
pav-90 [236]
I think the answer is hmmm I think
3 0
2 years ago
Electrophoresis is a genetic engineering technique that can be used to separate segments of
Stolb23 [73]

Answer:

Electrophoresis is a genetic engineering technique that can be used to separate segments of <em>DNA.</em>

3 0
3 years ago
Es with hydrogen
Naddika [18.5K]

Answer:

all u have to do is inserting hydrogen atoms where it's possible, if carbon is not bonded to any element, then it can have 4 hydrogens. for the first chain, the first carbon can have 3 hydrogen atoms, the second carbon 1 hydrogen atom only the third also 1 hydrogen since there is double bond and the 4th 2 hydrogen atoms

5 0
3 years ago
Read 2 more answers
Other questions:
  • A. Explain, in terms of particles, why NaCl(s) does not conduct electricity.
    14·1 answer
  • How many grams of water are in 19.2 moles of water?<br><br> *#28 is the question
    12·1 answer
  • Students working in lab accidentally spilled 17 l of 3.0 m h2so4 solution. they find a large container of acid neutralizer that
    5·1 answer
  • Help with a chem question?
    15·1 answer
  • Copper(I) ions in aqueous solution react with NH 3 ( aq ) according to Cu + ( aq ) + 2 NH 3 ( aq ) ⟶ Cu ( NH 3 ) + 2 ( aq ) K f
    6·1 answer
  • Which sequence represents the relationship between pressure and volume of an ideal gas as explained by the kinetic-molecular the
    8·2 answers
  • 35.0 mL of 12.0 M HCl is added to enough water to have a final volume of 1.20 L. What is the molarity of the final solution?
    9·1 answer
  • There is a theory that gravity could pull galaxies back together, causing a reverse big bang.
    12·2 answers
  • A.
    9·1 answer
  • Factors affecting movement of colored pigments in a paper chromatography
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!