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
Leokris [45]
3 years ago
6

How to solve determine the final temperature when 450.2 grams of aluminum at 95.2°c is placed in an insulated calorimeter with 6

0.0 grams of water at 10.0°c?
Chemistry
1 answer:
Pavlova-9 [17]3 years ago
8 0

To solve this, we simply equate the change in enthalpy for the two substances since heat gained by water is equal to heat lost of aluminum. We know that the heat capacity of aluminum is 0.089 J/g°C and that of water is 4.184 J/g°C. Therefore:

450.2 (95.2 - T) (0.089) = 60 (T – 10) (4.184)

3,814.45456 – 40.0678 T = 251.04 T – 2,510.4

291.1078 T = 6,324.85456

<span>T = 21.7°C</span>

You might be interested in
If you are given only the mass number of neutrons, how do we find an atomic number?
77julia77 [94]

Mass number is the sum of protons and neutrons.

Atomic number is the total number of protons present.

Mass number = protons + neutrons

Atomic number = protons present.

From the above equations we can conclude that,

Atomic number= Mass number- neutrons.

Thus we can find out the atomic number by subtracting the number of neutrons from the mass number.

3 0
3 years ago
Read 2 more answers
How many moles of oxygen are contained in. 752 moles of calcium carbonate?
Nitella [24]

Answer:

2.256 moles of oxygen atoms

Explanation:

CaCo3  is calcium carbonate

  every mole of calc carb has 3 moles of O atoms

  .752 moles of this has 3 times as many moles of Oxygen atoms

4 0
2 years ago
there is a total of seventeen constitutional isomers for the molecular formula c5h13n. draw the skeletal formula of all three co
MAXImum [283]
Amines are derivatives of Ammonia (NH₃) in which atleast one hydrogen atom is replaced by an alkyl group. Amines are further classifies as;

Primary Amines:
                          In primary amines the nitrogen atom is attached to two hydrogen atoms and one alkyl group.

Secondary Amines:
                             In secondary amines the nitrogen atom is attached to two alkyl groups and one hydrogen atom.

Tertiary Amines:
                         In tertiary amines the nitrogen atom is attached to three alkyl groups, hence it has no hydrogen atom.

Below are three isomers of tertiary amines with molecular formula C₅H₁₃N.

5 0
4 years ago
Describe the importance of the water cycle in the terms of;
nikitadnepr [17]

Answer:

ii.

Explanation:

Regulating weather patterns

3 0
2 years ago
Chemistry
postnew [5]

There are 48.72 g  Fluorine ions

<h3>Further explanation </h3>

Proust stated the Comparative Law that compounds are formed from elements with the same Mass Comparison so that the compound has a fixed composition of elements

In the same compound, although from different sources and formed by different processes, it will still have the same composition/comparison

%F in CaF₂ :

\tt \%F=\dfrac{2.Ar~F}{MW~CaF_2}\times 100\%\\\\\%F=\dfrac{2.19}{78}\times 100\5=48.72\%

mass of Fluorine :

\tt 48.72\%\times 200=97.44~g

So mass Fluorine ions(2 ions F in CaF₂⇒Ca²⁺+2F⁻) :

\tt =\dfrac{97.44}{2}=48.72~g

7 0
3 years ago
Other questions:
  • Given: h2o(aq) + h2o(l) h3o+(aq) + oh–(aq) δh°rxn &gt; 0 when the temperature of a sample of pure water is raised above 25°c,
    12·1 answer
  • Which salt solution is more concentrated, solution a, which contains 18g of salt in 6l of water, or solution b, which contains 2
    13·1 answer
  • Which of the following statements about the Sun is true?
    13·1 answer
  • Most organic compounds contain carbon and _____. see concept 4.1 (page 57) view available hint(s) most organic compounds contain
    8·1 answer
  • the characteristic ions present in water solutions of acids are A) oxide ions B) chloride ions C)hydronium ions D)nitride ions
    15·1 answer
  • Predict which of the following transition metal ions has a color Cr3+, Cd2+, Hg2+, V2+
    14·2 answers
  • Which of the following ideas helps explain the factors that affect island colonization of and species richness for a region?
    13·1 answer
  • What is the coefficient for this formula? 9 NaCl2 A. 11 B. 9 C. 2 D. 1
    12·1 answer
  • Which of the following statements about ions is NOT CORRECT?
    15·1 answer
  • 3.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!