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
horsena [70]
4 years ago
7

Question 2 (1 point)

Chemistry
1 answer:
AveGali [126]4 years ago
5 0

The molarity of the given solution is 0.1 M.

<u>Explanation:</u>

We have to find the molarity of calcium chloride by converting the mass of CaCl₂ into its moles and dividing it by its volume in Litres.

We have to find the moles by dividing the mass of the substance by its molar mass.

Moles of CaCl₂ = $\frac{mass}{molar mass}

                       = $\frac{5.30 g }{110.98 g/mol}

                       = 0.05 moles

Molarity = $\frac{moles}{volume(L)}

             =  $\frac{0.05 moles}{0.5 L}

              = 0.1 M

So the molarity of the given solution is 0.1 M.

You might be interested in
Pour a liter of water at 40°c into a liter of water at 20°c and the final temperature of the two becomes
fredd [130]
T1-T2
40°+273=313-20°+273=293
313-293=20
the final temp is 20°
6 0
3 years ago
What is the formula for an ionic compound that forms out of Sr and Br?
lesantik [10]

Answer: St Br2

Explanation: Br has only one valence electrons and Sr has 2 valence electrons this is why we need 2 atoms of Br to for an ionic compound with 1 atom of Sr.

8 0
3 years ago
Which of these processes indicates that smelting copper is a chemical change
BlackZzzverrR [31]

The correct answer is D:


it involves breaking molecular bonds between copper compounds .


The explanation :


-when we melt a copper it is a physical change because the substance is still copper and have the same shape.


- but for example Burning a copper it is a chemical change. Fire activates a chemical reaction between copper and oxygen.


-The oxygen in the air reacts with the copper and the chemical bonds are broken.


- the chemical change is changing the other compound bonded to the copper atoms.


So, the correct answer is D

5 0
3 years ago
Read 2 more answers
A neutral atom in its ground state contains 28 electrons. this element is considered a ________ element, and has _______ electro
zalisa [80]
A neutral atom in its ground state contains 28 electrons. this element is considered a <span>transition </span>element, and has 8 electrons in orbitals with l = 2.
Electron configuration: ₂₈X 1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁸ 4s².
l is azimuthal quantum number, l = 2 describes d orbital. There is eight electrons in 3d orbital.
4 0
4 years ago
Read 2 more answers
Determina el pH del café cuya concentración de H+ es de 0.00001M
lara31 [8.8K]

Answer:

5

Explanation:

Given parameters:

Hydrogen ion concentration  =  0.00001M

Unknown:

pH of the solution =?

Solution:

The pH is used to estimate the degree of acidity or alkalinity of a solution. To solve for pH of any solution, we use the expression below;

          pH  = -log [H⁺]

[H⁺] is the hydrogen ion concentration

        pH  = -log (1 x 10⁻⁵)

      pH = -(-5) = 5

4 0
3 years ago
Other questions:
  • Which of the following describes a circular current in a fluid that
    10·1 answer
  • Water is unique because no other substance in nature occurs in
    5·1 answer
  • In a reaction to produce sulfuric acid, the theoretical yield is 300.g. What is the percent yield if the actual yield is 280.g?
    8·1 answer
  • Based on periodic properties, identify a molecule, X2, that is likely to react with Sr in a way similar to how Cl2 reacts with S
    6·1 answer
  • Is it true The rotation of the Earth causes night and day.
    7·2 answers
  • Consider the balanced chemical equation below.
    10·1 answer
  • What is the molar concentration of 2.0 mol of KCl dissolved in 1000 mL of solution?
    7·1 answer
  • What is stoichiometry?​
    11·2 answers
  • When 20.0 mL of an acetic acid (CH3COOH) solution is titrated with a 0.0610 M sodium hydroxide (NaOH) solution, the equivalence
    12·1 answer
  • What is the purpose of the scientific method?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!