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
lawyer [7]
2 years ago
10

If you are needing at least 100. grams of HCI to be produced, how many

Chemistry
1 answer:
Charra [1.4K]2 years ago
8 0

Answer:

116.4 g of SiCl4

Explanation:

SiCl4(l) +2H2O(l) -------> SiO2 (s) + 4HCl(aq)

Given this balanced reaction equation which will serve as a guide for our work, we can now look at the stoichiometry of the reaction.

Number of moles of HCl needed = mass of HCl/ molar mass of HCl

Molar mass of HCl= 36.46 g/mol

Number of moles of HCl= 100/36.46 g/mol= 2.74 moles

From the balanced reaction equation;

1 mole of SiCl4 yields 4 moles of HCl

x moles of SiCl4 will yield 2.74 moles of HCl

x= 2.74/4 = 0.685 moles of SiCl4

Therefore mass of SiCl4= number of moles of SiCl4 × molar mass of SiCl4

Mass of SiCl4= 0.685× 169.9 g/mol = 116.4 g of SiCl4

You might be interested in
Insulators prevent the loss of heat. A company is designing a mug that will keep coffee warm for a long time. Which one of these
Mumz [18]
Rubber, because it doesn’t conduct heat and it is a good insulator
3 0
2 years ago
Comprised of protons, neutrons, and electrons.
dsp73

Answer:

The atom

Explanation:

6 0
3 years ago
The lattice energy of a salt is related to the energy required to separate the ions. For which of the following pairs of ions is
Kay [80]

Answer: The Lattice energy is the energy required to separate an ionic solid into its component gaseous ions <em>or</em>

It is the energy released when gaseous ions combine to form an ionic solid.

Explanation:

The lattice energy depends on the ionization energies and electron affinities of atoms involved in the formation of the compound. The ionization energies and electron affinities also depends on the ionic radius and charges of the ions involved. As the ionic radius for cations <em>increases</em> down the groups, ionization energy <em>decreases</em>, whereas, as ionic radii <em>decreases</em> across the periods , ionization energy <em>increases</em>. The trend observed for anions is that as ionic radii <em>increase </em>down the groups, electron affinity <em>decreases. </em>Across the period, as ionic radii <em>increases</em> electron affinity <em>increases</em>. Also, as the charge on the ion <em>increases,</em> it leads to an <em>increase</em> in energy requirement/content.

Therefore, for compounds formed from cations  and anions in the same period, the highest charged cation and anion will have the highest lattice energy. For example, among the following compounds: Al2O3 (aluminium oxide), AlCl3 (aluminium chloride), MgO, MgCl2 (magnesium chloride), NaCl, Na2O (sodium oxide); Al2O3(aluminium oxide) will have the highest lattice energy, thus will be hardest to break apart because its ions have the highest charge.

5 0
3 years ago
Understanding Acceleration: Remember, acceleration is speeding up, slowing down, or changing direction.
Georgia [21]

Answer:

<h2>∞∞∞∞∞∞║⊕║Hello Person║⊕║∞∞∞∞∞∞</h2>

Your answer should be:

<em>1. No </em>

<em>2. Yes</em>

<em>3. No</em>

<em>4. Yes</em>

<em>5. No</em>

Explanation:

I hope this answered your question.

<em>Brainliest would be appreciated! </em>

<em>Have a wonderful day!</em>

6 0
3 years ago
Read 2 more answers
Elements in group 2 are all called alkaline earth metals. What is most similar about the alkaline earth metals?
german

Answer:

D

Explanation: the last one

4 0
3 years ago
Read 2 more answers
Other questions:
  • When electricity is produced from coal, the chemical energy in coal is first changed to thermal energy. True or False
    6·1 answer
  • At a certain temperature the speeds of six gaseous molecules in a container are 2.0 m/s, 2.2 m/s, 2.6 m/s, 2.7 m/s, 3.3 m/s, and
    7·2 answers
  • How can you tell if a substance is a mixture or a compound
    14·1 answer
  • A) Calculate the pH of a 2.0x10-4 M solution of aniline hydrochoride, C6H5NH3Cl.
    6·2 answers
  • Science need help now plz wut?
    10·2 answers
  • What is the site of ATP synthesis
    10·2 answers
  • A chemical change involves a change in ________. A chemical change involves a change in ________. phase the elements of a molecu
    10·1 answer
  • 12. How are secondary sources of energy different from other energy resources?<br> (Plz help)
    12·1 answer
  • What color is a carrot
    9·2 answers
  • PLEASE HURRY LIMITED TIME
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!