Chemistry High School

Calculate the mass of arsenic(III) chloride

produced when 0.150 g of arsenic reacts with

excess chlorine according to the equation:

2As+3Cl2 → 2AsCl3

Answers

Answer 1

Answer:

Mass of arsenic chloride produced is 0.363 g

Explanation:

Given data:

Mass of arsenic chloride produced = ?

Mass of arsenic react = 0.150 g

Mass of chlorine = excess

Solution:

Chemical equation:

2As + 3Cl₂      →   2AsCl₃

First of all we will calculate the number of moles of arsenic.

Number of moles = mass/ molar mass

Number of moles =  0.150 g/ 75 g/mol

Number of moles = 0.002 mol

Now we will compare the moles of arsenic with arsenic chloride.

                          As             :             AsCl₃

                           2              :                2

                         0.002        :              0.002

Mass of arsenic chloride produced:

Mass = number of  moles × molar mass

Mass = 0.002 × 181.28 g/mol

Mass = 0.363 g

Related Questions

how many atoms are in FeS₂?

Answers

Surface model,we used a supercell of

16.1106×16.1106×18.0 And a model of a 3 × 3

9 atoms..

if this answer helps you plz mark as brainlist..But, don't report my answer..

An lonic compound contains a single metal cation and a single non-metal atom. What's the structure of this molecule? Is this molecule polar or non-polar?
A. Trigonal planar, polar
B. Linear, non-polar
C. Trigonal planar, non-polar
D. Linear, polar

Answers

A molecule is polar when there is a disparity in electronegativity among its constitutive atoms and a geometric asymmetry in the distribution of charge density. A chemical bond’s polarity depends on the difference in the electronegativity between the bonded atoms; the greater the difference, the greater the electric dipole moment, and the greater the ionic character of the bond.

Because metals are generally electropositive and nonmetals electronegative, a metal cation and a nonmetal anion would form a very polarized bond. An ionic compound, by definition, consists of atoms held together by a bond of sufficiently significant ionic character. In this question, since you have a single cation and a single anion, there are no nonbonding electrons to distort the otherwise “linear” geometry of the binary electrovalent compound.

This question is rather malformed, however, which is why “linear” is in quotation marks. That is because electrically neutral ionic compounds do not properly exist as discrete entities, but rather as clusters of cations and anions arranged within a crystal lattice. “Molecule” is a term preferentially reserved for chemical species that contain covalent bonds. While molecules themselves can exist as ions, these ions are generally composed of atoms whose intramolecular bonding is covalent.

Likewise, molecular geometry as predicted by VSEPR theory contemplates a central atom bonded to at least two atomic ligands as well as nonbonding electrons, if any. The theory thus cannot be properly applied to a compound composed only of two oppositely charged ions since such a compound has neither a central atom nor nonbonding electrons.

All that said, of the answer choices you’re given, choice D would seem to be the most sensible answer.

HI PLEASE HALP MEH

Habitat preservation is usually the most efficient method of protecting biodiversity because it involves protecting an entire ____.

A: Organism
B; population
C: ecosystem
D: species

Answers

C- Ecosystem - should be the right answer

Habitat preservation is usually the most efficient method of protecting biodiversity because it involves protecting an entire ecosystem.

What are natural habitats?

The natural world provides a variety of resources that can be taken advantage of for financial gain, such as timber taken from forests and clean water taken from streams and hence the entire ecosystems preservation.

However, anthropogenic economic growth-related land expansion frequently results in a decrease in the ecological integrity of neighboring natural habitat.

A management strategy known as habitat conservation aims to preserve, maintain, and restore habitats in order to stop the extinction, fragmentation, or range reduction of species. It is a focus of numerous groups that is difficult to categorize in terms of a single ideology.

For instance in tropical regions with a high species richness or in leisure activities like hiking and mountain biking that take place in undeveloped areas. Repairing harmed ecosystems is thought to be substantially more valued.

To find more on ecosystems, refer here:

https://brainly.com/question/13979184

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Which sentence best explains the observed trend in atomic radius as you
move down the periodic table?
O A. The more core electrons an atom has, the smaller the atomic
radius.
OB. The more energy levels that are occupied by electrons, the larger
the atomic radius.
C. The more paired electrons there are, the smaller the atomic radius.
O D. The more neutrons a nucleus has, the larger the atomic radius.

Answers

Answer:

B

Explanation:

The more energy levels that are occupied by electrons, the larger

the atomic radius.

The more energy levels that are occupied by electrons, the larger

the atomic radius. Hence, option B is correct.

What is the atomic radius?

The atomic radius is calculated by measuring the distance between the nuclei of two identical atoms bonded together.

In general, the atomic radius decreases across a period and increases down a group. Across a period, effective nuclear charge increases as electron shielding remain constant.

Hence, the observed trend in atomic radius as you move down is that the more energy levels that are occupied by electrons, the larger

the atomic radius.

Learn more about the atomic radius here:

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A certain chemical reaction releases 850 J of
energy. Convert this quantity to calories.


Help me plz.

Answers

Answer:

203.155 calories

Explanation:

Given that,

Energy released by a certain chemical reaction is 850 J.

We need to convert the energy into calories.

We must know the relationship between Joules and Calories.

1 calorie = 4.184 Joules

1 Joule = 0.239006 calorie

Now,

850 Joule = 203.155 calories

So, 850 J of energy is equivalent to 203.155 calories.

what happens Cotton socks are rubbed against a wool carpet

Answers

Answer:

Static electricity

Explanation:

Because the friction is creating heat and static.

Answer:

it generates static:)

What always happens during a chemical change?

Answers

In a chemical change, the atoms in the reactants rearrange themselves and bond together differently to form one or more new products with different characteristics than the reactants. When a new substance is formed, the change is called a chemical change.

Answer:

In a chemical change, the atoms in the reactants rearrange themselves and bond together differently to form one or more new products with different characteristics than the reactants. When a new substance is formed, the change is called a chemical change

When does carbon dioxide absorb the most heat energy

Answers

Answer:

Carbon dioxide absorbs the most heat energy during SUBLIMATION

Explanation:

Carbon dioxide absorbs the most heat energy during SUBLIMATION

Carbon dioxide (CO2) is also an important greenhouse gas. It has a long lifetime in Earth's atmosphere. Carbon dioxide strongly absorbs energy with a wavelength of 15 μm (micrometers). This makes carbon dioxide a good absorber of wavelengths falling in the infrared radiation region of the spectrum.

Didymo threatens the North Georgia trout populations. What is the best way Georgians can help prevent the spread of didymo?

Answers

Answer: Avoid wading in Georgian waters to catch trout  and don't move from one body of water to the next without changing and sanitizing waders.

Explanation:

Use the periodic table to predict which element has the most metallic character.

A) silicon
B) sodium
C) sulfur
D) thallium

Answers

Answer: A silicon

Explanation:

HELPPPP If you observe a blue light emitted during the flame test, what would the wavelength of the light be?

Answers

Observe a blue light be wavelength flame test during

Some trees have purple leaves. The purple colour is a mixture of coloured pigments.

Plan an experiment to extract and separate the coloured pigments present in the purple leaves.

You are provided with some purple leaves, sand, ethanol and common laboratory apparatus.

Answers

Answer:

blue and red

Explanation:

edmmdldl c0lor w

Gases can be defined by the following statement:
Gases freely flow to fill the container they are in.
Gases have neither a defined volume nor shape.
Gases are highly compressible.
All of the above

Answers

all of the above

i hope you have a good day!

Gases can be defined by the  statement, gases freely flow to fill the container they are in, gases have neither a defined volume nor shape and gases are highly compressible.

What is gas?

Even in the existence of gravity as well as irrespective of the mass of a substance in the vessel, gas is just a sample of matter which make up the structure of the container where it is contained and achieves an uniform distribution within the container.

What is volume?

The term "mass" refers to the amount of material used to construct anything. The volume of a thing refers to the amount of space it occupies.

Gases can be defined by the  statement, gases freely flow to fill the container they are in, gases have neither a defined volume nor shape and gases are highly compressible.

Therefore, the correct answer will be option (D).

To know more about gas and volume.

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Write an essay (10 lines) about "What is Energy?" How many types of Energy do you know? and which are the types of Energy most used in the world?

Answers

I think the most used types of energy used around the world is electrical

how many inches are in 20.12 cm
​

Answers

The answer is 7.921 inches

Answer:

About 7.9 inch

Explanation:

Convert 67.2 L CO at STP to moles

Answers

To Find :

The STP moles of 67.2 L CO.

Solution :

We know, molar volume at STP is used to converted into moles by :

1 moles = 22.4 L STP

So, number of moles in 67.2 L CO is :

[tex]n=\dfrac{67.2}{22.4}\\\\n = 3 \ moles[/tex]

Therefore, number of STP moles are 3.

Hence, this is the required solution.

What is the product of NO2+NaOH ?

Answers

Explanation:

i hope i have been useful buddy.

good luck ♥️♥️.


What is the density of a sample of a substance with a volume of 120ml
and a mass of 90g?

Answers

Answer:

The answer is 0.75 g/mL

Explanation:

The density of a substance can be found by using the formula

[tex]density = \frac{mass}{volume} \\ [/tex]

From the question

mass = 90 g

volume = 120 mL

We have

[tex]density = \frac{90}{120} = \frac{9}{12} = \frac{3}{4} \\ [/tex]

We have the final answer as

0.75 g/mL

Hope this helps you

How many particles are in 0.15 moles of Francium ?

Answers

I think it’s 86.66
sorry if it’s wrong though

LOTS OF POINTS FOR WHOEVER ANSWERS THIS
Place the elements Lithium (Li), Beryllium (Be), and Potassium (K) in order from lowest electronegativity energy to the highest. Explain with details and use the Coulomb's Law to back up your statement

Answers

You should probably rephrase this:

According to Coulomb's Law, as the number of protons in an atom increases (or atomic number), the nuclear energy of atoms will increase, pulling electrons closer.

I think the order would be Be, Li, K but feel free to check online before you submit any work with this.

Ms. Clark added a spoonful of baking soda and then poured a little vinegar into the cup. We observed fizzing and bubbling. Based on what we saw or observed, we decided that a new substance was formed by mixing the baking soda and vinegar. How do we know that? O A gas formed. o It was magnetic. It was a conductor. o It was hot. 0 It changed colors to pink.​

Answers

Answer:

we know that it was the vinegar and baking soda because gas had been created, the gas was held within the bubbles. the gas that was created was called Carbon Dioxide or CO2

Which of the following is the biggest ionic radius? Na+ or Na?

Answers

Answer:

Na

Explanation:

Na is the answer of your question

explain why the two argon atoms are attracted
to each other.

Answers

Each are non-metals, which form a covalent bond. They also have high electron rapport.
- nonmetal and nonmetal equals covalent bond.

How many valence electrons are in a highly reactive metal that is explosive with
water?

A).7
B).2
C).1
D).5

Answers

B I think sorry If I’m wrong

calculate the number of atoms in 52g of He.​

Answers

Answer:

Number of atoms in 52g of He is 7.829X10^24.

Explanation:

Solution,

Given,

No of mole of atoms (NA) = 6.023x10^24.

Mass ogiven helium=52g

Atomic mass of helium=4

Lets do sep by step,

1) No. of atom in 52g of He.

= NAxmass/At.mass

= 6.023X10^23x52/4

= 7.829 x 10^24.

The smallest unit of a compound in which two or more atoms are joined chemically together
Molecule.
A. Energy
B. Organism
C. Chemical reaction
D. Matter
E. Cellular respiration

Answers

Im thinking the answer is C.

Identify the number of elements and the number of atoms present in the chemical formula.

Answers

How do you know how many atoms are in a chemical formula?

~~~~~~~~~~~
in the formula. It also represents the number of molecules of that compound. has 4 sodium atoms, 2 sulphur atoms, and 8 oxygen atoms. When you count atoms, remember to multiply the coefficient number and the subscript number to find the number of atoms of that element.

Would sodium bond with potassium (atomic number 19)? Why or why not?

Answers

Answer:

No

Explanation:

Sodium ;

Atomic number = 11

Group = Group 1

Valence electrons ; 1

Charge = electropositive elements

Potassium ;

Atomic number ; 19

Group = Group 1

Valence electrons ; 1

Charge = electropositive elements

Reason why Sodium and Potassium can not form a bond ;

They both belong to the same group in the periodic table (Group I).They  both contain one electron in their outermost shell(they need to lose it)

So, a chemical reaction between both these elements is not going to establish octant sate  for either of the element.

Steven and Joey are sent to the main office to pick up materials fo science class. Steven picks up a box that contains 40.0g of styrofoam. Joey picks up a box that contains 40.0g of marbles. On the way back to class, the boys begin to argue over whose bo is heavier. Steven thinks he has the heavier box. Joey thinks his box is definitely heavier than Steven's. 1. Which boy is correct? EXPLAIN!!!!​

Answers

Answer:

I NEED HELP PLZZZZZZZZZZZZZ

Explanation:

Answer: Their both 40.0g, they're the same weight bot boys are wrong

Explanation:

What kind of change is burning paper​

Answers

Answer:

Burning paper is a chemical change where paper burns to form ash and also CO2

Answer:

Burning paper is a chemical change

Explanation:

As when a paper is burnt its physical properties and structure completely changes . And it converts into an ashes.

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