Analysis of a 10.150 grams sample of a compound known to contain only phosphorus and oxygen indicates a phosphorus content of 4.433 grams. What is the empirical formula of this compound

Answers

Answer 1

A 10.150 grams sample of a compound containing only phosphorus and oxygen which indicates a phosphorus content of 4.433 grams has the empirical formula P₂O₅.

An Empirical formula is defined as the simplest whole number ratio of different atoms present in the molecule of a compound.

given,

mass of the unknown compound= 10.150 g

mass of phosphorus= 4.433 g

therefore, mass of oxygen

=mass of the unknown compound -  mass of phosphorus

=10.150-4.433 g

=5.717 g

we know that

molar mass of oxygen = 16 g/mol

molar mass of phosphorus = 31 g/mol

number of moles of oxygen

=mass/molar mass

=5.717g/16gmol⁻¹

=0.357

number of moles of phosphorus

= mass/molar mass

= 4.433g/31gmol⁻¹

=0.143

Now, we will divide the moles by the smallest number of moles (0.143)

O= 0.357 / 0.143 =2.49≈ 2.5

P= 0.143 /0.143 = 1

now, we will multiply both numbers by 2 to get the simplest whole number ratio

O= 2.5×2= 5

P= 1×2= 2

Thus, the empirical formula is P₂O₅.

To know more about empirical formula here

https://brainly.com/question/12239025

#SPJ4


Related Questions

Please help I will give brainliest.

Answers

Answer:

the second one looks like it so I picked the second one

Classify each amino acid according to whether its side chain is predominantly protonated or deprotonated at a pH of 7. 40. The p K a values of the Asp, His, and Lys side chains are 3. 65 , 6. 00 , and 10. 53 , respectively

Answers

His and Lys are deprotonated but Asp will be protonated.

What is amino acids?

Organic substances that possess both amino and carboxylic acid functional groups are known as amino acids. Although hundreds of amino acids occur in nature, the alpha-amino acids that constitute proteins are by far the most significant. The genetic coding contains only 22 alpha amino acids. Amino acids are chemicals that make proteins when they combine. The building blocks of life are amino acids and proteins. Amino acids are left over after proteins are digested or broken down. To support the body, the human body utilizes amino acids to build proteins: Food should be broken down.

Here,

As the pH is given as 7.4 and pK of His is given as 6.00. There will occur a positive charge on His when it's pH < pK therefore, it is neutral at the given pH.

As the pK value of Lys is 10.53 that is greater than the pH of 7.40. Therefore, charge on Lys is positive.

As the pK value of Asp is 3.65 which is less than the pH value of 7.40. Hence, Asp has a negative charge.

Therefore, we can conclude that His and Lys are deprotonated but Asp will be protonated.

To know more about amino acid,

https://brainly.com/question/16832236

#SPJ4

How does the volume change if 50mL of a gas material is cooled from 30\deg C to 5\deg C ?
50mL
46mL
100mL
56mL

Answers

The final volume can be determined using Charles's law. The volume of gas at 5 degree Celsius will be 8.3 ml.

What is Charles's law of gases ?

According to Charles's law, at constant pressure, the volume of a gas is directly proportional to the temperature.

Hence, V/T = constant.

Let, V1 and T1 be the initial volume and temperature and V2, T2 be the final quantities.

then, V1/T1 = V2/T2.

V2 = V1 T2/ T1

Given, V1 = 50 ml

T1 = 30 °C

T2 = 5 °C

Then, V2 = 50 ml × 5 °C /30 °C = 8.3 ml

Therefore, the volume of the gas reduces to 8.3 ml.

Find more on Charles's law:

https://brainly.com/question/16927784

#SPJ1

How can you use chemical formulas to determine if a change is chemical or physical?

Answers

Answer: Chemical changes cause a substance to change into an entirely substance with a new chemical formula.

Physical changes only change the appearance of a substance, not its chemical composition.

Chemical changes are also known as chemical reactions.

HOPE THIS HELPS

The molar mass of CCl4 is 153. 81 g/mol How many grams of CCl4 are needed to have 5. 000 mol?​

Answers

The molar mass of CCl4 is 153. 81 g/mol. '769.0 g' of CCl4 are needed to have 5.000 mol.

What is molar mass?

Molar mass is the mass of one mole of a substance. It is usually expressed in grams per mole (g/mol). The molar mass of a substance is calculated by taking the sum of the atomic weights of all of the atoms in the molecule multiplied by the Avogadro constant (6.022x10^23).

To find the number of grams of CCl4 needed to have 5.000 mol, use the formula:

Mass (grams) = Molar mass (g/mol) x Number of moles

Mass (grams) = 153.81 g/mol x 5.000 mol

Mass (grams) = 769.0 g.

'769.0 g' of CCl4 are needed to have 5.000 mol.

To know more about molar mass,

https://brainly.com/question/837939

#SPJ4

Predict the molecular geometries of the following species, respectively: IF3, TeF4, XeF51+.
a. T-shaped, see-saw, square pyramidal
b. trigonal planar, tetrahedral, square pyramidal
c. trigonal pyramidal, tetrahedral, see-saw
d. trigonal planar, see-saw, square planar
e. trigonal pyramidal, square planar, linear

Answers

a. T-shaped, see-saw, square pyramidal.IF3: The Lewis structure of IF3 consists of a central I atom, which is surrounded by three F atoms.

IF3: The Lewis structure of IF3 consists of a central I atom, which is surrounded by three F atoms. The three F atoms are arranged in a symmetric, T-shaped geometry.

TeF4: The Lewis structure of TeF4 consists of a central Te atom, which is surrounded by four F atoms. The four F atoms are arranged in a symmetric, trigonal planar geometry.

XeF5+: The Lewis structure of XeF5+ consists of a central Xe atom, which is surrounded by five F atoms. The five F atoms are arranged in a symmetric, square pyramidal geometry.

a. T-shaped, see-saw, square pyramidal.

learn more about lewis here

https://brainly.com/question/4144781

#SPJ4

which of the following is a testable hypotheses?
O A. if I brush my teeth, I will get fewer cavities than if i don’t brush my teeth.
O B. it’s wrong not to brush your teeth before you have an important conversation with someone.
O C. Green toothpaste taste better than blue toothpaste or red toothpaste.
O D. smart, careful, healthy people always brush their teeth.

Answers

I would say C. because that’s the only one you can actually test.

Answer:

A

Explanation:

because its the only one that can be tested

Convert 100mL to L. Show your work to receive full credit.

Answers

Answer:

100 ml = 0.1 L

I divided 100 by 1000 because 1000ml = 1L

Select the correct answer.

How does substituting a hydrogen atom with a halogen in a hydrocarbon affect the resulting compound?

A.
All the single bonds in the original molecule change to double bonds.
B.
The boiling point of the new compound increases.
C.
The bonds between the carbon atoms in the molecule become weaker.
D.
The resulting compound is called a saturated hydrocarbon.
E.
The substitution allows each carbon atom to accept more than four valence electrons.

Answers

Answer:

E. The substitution allows each carbon atom to accept more than four valence electrons.

Explanation:

Halogens (except for fluorine) have seven valence electrons, which gives them the flexibility to participate in more than four covalent bonds. Hydrogen only has one valence electron, so it tends to form only four covalent bonds. In a substitution reaction, each halogen provides the carbon atom with additional electrons, allowing it to accept more than the usual four.

Answer:

C. The bonds between the carbon atoms in the molecule become weaker.

Explanation:

56. A rigid cylinder with a movable piston contains a 2.0-liter sample of neon gas at STP. What is the
volume of this sample when its temperature is increased to 30.°C while its pressure is decreased to
90. kilopascals?
A) 2.5 L
B) 2.0L
C) 1.6L
D) 0.22 L

Answers

V2 = 2.499 2.5 L is the sample's volume when its temperature is raised to 30 °C and its pressure is lowered to 90 kilopascals.

What does the word "volume" actually mean?

The volume of an item is the space occupied inside its three-dimensional boundaries. A other word for it is the object's capacity.

What is the volume of the liquid?

The volume of liquid measured in a vessel's standard units is known as the liquid measurement. Infant milk bottle with milliliter measurement indications and juice bottle with a 1 liter capacity are two examples of vessels that have a "capacity" or "volume."

As,

Gas constant R is constant, so, Ideal gas equation can be written as,

                                        P₁ V₁ / T₁  =  P₂ V₂ / T₂

Solving for V₂,

                                          V₂  =  (P₁ × V₁ × T₂) ÷ (T₁ × P₂)

Putting Values,

                             V₂  =  (101.325 KPa × 2 L × 303 K) ÷ (273 K × 90 KPa)

                             V₂  =  61402.95 ÷ 24570

                             V₂  =  2.499 ≈ 2.5 L

To know more about volume visit:

https://brainly.com/question/28058531

#SPJ1

SnO2 (s) + 2 H2 (g) → Sn (s) + 2 H2O (l)

What mass of water is produced when 57.6g of SnO2 are consumed in the reaction above?

Answers

Answer:

SnO2+2H2 - Sn +2H2O

50g of tin plus 32g of oxygen-36g of H2O

82g- 36g

57.6g- x

cross multiply

82xg= 2073.6g

xg = 2073.6/82

Xg= 25.28g

Therefore the mass of water consumed in the reaction is 25.28g

CH4 + 2 Cl₂ →→ 4 HCl + C
4. Use the equation above to calculate how many moles of CH4 are required to
produce 3.6 moles of HCl. (2 pts)

Answers

By using given equation 0.9 moles of CH₄ are required to produce 3.6 moles of HCl.

In simple terms, what is a chemical reaction?

The transformation of one or more reactants, also known as reactants, into one or more new products, also known as products, occurs during a chemical reaction.

Chemical reactions turn reactants into products by involving reactants in the process. As an illustration, when we breathe, oxygen is inhaled, and upon coming into contact with glucose, it reacts to create carbon dioxide, water, and energy.

Given chemical reaction:

CH₄ + 2 Cl₂ → 4 HCl + C

1 mole of CH₄ gives 4 moles of HCl

x moles of CH₄ gives 3.6 moles

x moles of CH₄ = 3.6/4

x moles of CH₄ = 0.9moles.

To know more about moles visit:

https://brainly.com/question/27926556

#SPJ1

Explain the role of photosynthesis in the carbon cycle

Answers

Answer:

During photosynthesis, plants absorb carbon dioxide and sunlight to create fuel, glucose and other sugars for building plant structures. This process forms the foundation of the fast carbon cycle.In all four processes, the carbon dioxide released in the reaction usually ends up in the atmosphere.

Answer:

During photosynthesis, plants also absorb carbon dioxide and sunlight to create fuel, glucose, and other sugars for building plant structures. This process forms the foundation of the fast carbon cycle.

Explanation:

hope this helps

pls mark me brainliest

What particle has a negative electrical charge and is found in clouds
outside the nucleus? *
O Proton
O Neutron
O Electron

Answers

electrons

Revolving around the nucleus at a distance is a cloud of particles called electrons. Each electron has a negative charge.

Answer:

Electron

Explanation:

Because electrons are negatively charge particles

plz draw a periodic table with all its information​

Answers

Answer:

Explanation:

Hope this helps u!!

Answer:

plz following me ❤❤...........,...,.,.

7. Buffalo were moved from Yellowstone National Park because
they carried a serious disease
they had killed other animals
they were no longer protected there
the herd had grown too large

Answers

Answer:

they had killed other animals

I believe your answer is carried a serious disease.

Explanation: Buffalo are known to carry a disease called brucellosis, which can spread to livestock a kill other animals/

Your body is made up of trillions of cells that perform all the functions you need to survive. Which other kinds of organisms are composed of cells?

Only animals are composed of cells.
Only animals are composed of cells.

Only animals and plants are composed of cells.
Only animals and plants are composed of cells.

Only animals, plants, and bacteria are composed of cells.
Only animals, plants, and bacteria are composed of cells.

All organisms are composed of cells.

Answers

All organisms are composed of cells.

How many moles are in 1gm?

Answers

The mole is the fundamental unit of substance quantity in the SI. 0.041143797572516 moles make up 1 gram of magnesium. The grams to moles formula Use the grams to moles formula to calculate the number of moles, n, of a substance with a given mass, m, (in grams) accurately. n = m / M.

Depending on the substance, yes. As a reminder, a mole is equal to 6.02 1023 atoms and is used to measure quantities. Therefore, it stands to reason that lead and hydrogen would weigh differently. Less moles would be required because it would take a lot fewer lead atoms to make up 1 gram. However, one hydrogen atom has far less mass than one lead atom, therefore more atoms (and moles) would be required to create one gram.

Learn more about moles here:

https://brainly.com/question/14592151

#SPJ4

You have 56.8 mL of a gas collected at 664 mmHg and 135 K. What volume will it occupy at 632 mmHg and 196 K? *

Answers

Answer:

86.6 mL

Explanation:

From the question given above, the following data were obtained:

Initial volume (V₁) = 56.8 mL

Initial pressure (P₁) = 664 mmHg

Initial temperature (T₁) = 135 K

Final pressure (P₂) = 632 mmHg

Final temperature (T₂) = 196 K

Final volume (V₂) =?

The final volume of the gas can be obtained as follow:

P₁V₁/T₁ = P₂V₂/T₂

664 × 56.8 / 135 = 632 × V₂ / 196

Cross multiply

135 × 632 × V₂ = 664 × 56.8 × 196

85320 × V₂ = 7392179.2

Divide both side by 85320

V₂ = 7392179.2 / 85320

V₂ = 86.6 mL

Therefore, the final volume of the gas is 86.6 mL

Steel is an alloy containing Fe atoms and C atoms. Which of the following diagrams best represents the particle-level structure of steel ?

Answers

the diagram that best represents the particle-level structure of steel as alloy is option (b).

Alloy, often known as an alloy, is a metallic material made up of two or more elements. Even though carbon, a nonmetal, is a crucial component of steel, the constituents of alloys are typically themselves metals.

Typically, melting the mixture of materials produces alloys. Early civilizations recognized the usefulness of alloys; brass (copper and zinc) and bronze (copper and tin) were particularly significant.

Steel is an alloy of iron and carbon. carbon range is upto 2 percent in the mixture.

In steel iron atoms are larger than carbon.

Learn more about alloy

brainly.com/question/3718729

#SPJ4

The half-life of 90Sr is 29 years. What fraction of the atoms in a sample of 90Sr would remain 175 years later

Answers

Ninety-seven years is the half-life of 90Sr. A sample of 90Sr would still have 0.015 of its original atoms after 175 years. The duration needed for a quantity to fall to half its starting value is known as the half-life.

The phrase is frequently employed in nuclear physics to indicate how rapidly unstable atoms decay radioactively or how long stable atoms last. One or more electrons are attached to the nucleus of every atom, which is made up of a nucleus. Protons and neutrons, in various numbers, make up the nucleus. Neutrons exist only in the most prevalent type of hydrogen. Atoms that are neutral or ionised are the building blocks of all solids, liquids, gases, and plasma.

[A]t=[A]o/[A]t=4.18 [A]o/[A]t=e4.18=65.5

[A]o = 1.5%[A]o], where [A]t = 0.015

Learn more about atoms here

https://brainly.com/question/28240666

#SPJ4

Which type of reaction is indicated by a positive AH?
o an endothermic reaction
O a reversible reaction
O a spontaneous reaction
O an exothermic reaction

Answers

Answer:

An endothermic reaction

Explanation:

A positive sign indicates that energy is absorbed. Hence it is an endothermic reaction.

A reversible reaction is indicated by a double arrow on the chemical equation.

A spontaneous is indicated by negative Gibbs Free Energy (G) value.

An exothermic reaction is indicated by a negative enthalpy change

Glucose gives off 2808 kJ/mol when burned, how much energy can be
produced from 935 grams? *
O 14602 kJ
O 15.6 kJ
O 0.3330 kJ
O 3.00 kJ

Answers

1mol of glucose gives 180.156g and these grams gives 2808 kj/mol
180.157>>>2080
935>>>??
Answer is A

The_____gene shows up even when inherited only from one parent.

Answers

Answer:

The Alleles gene shows up even when inherited only from one parent

Explanation:

The two alleles in a gene pair are inherited, one from each parent. Alleles interact with each other in different ways. These are called inheritance patterns.

i hope this helped

An element is reduced while another element is oxidized. 1. Acid base 2. Redox 3. Precipitation 4. Combustion

Answers

[tex] \huge\hookrightarrow \mathtt{ Answer }[/tex]

The reaction in which one element is oxidized and other element is reduced is known as :

[tex] \huge \boxed{ \mathbb{redox}}[/tex]

Answer:

[tex]\huge \mathcal{Answer}࿐Answer࿐[/tex]

[tex]\huge \mathcal{ redox} \:[/tex]

I hope it helps

have a nice day

감사합니다

あ映画と

you have a sample contianing 4.92x10^23 molecules of nitrogen dioxide. how many grams of nitrodgen dioxide do you have

Answers

As a result, 6.022 x 10 23 molecules of water weigh 18.02 g. A mole of sodium chloride (6.02 x 1023 formulas) weighs 58.44 g.

A substance's mole is equivalent to 6.022 x 1023 of that material (such as atoms, molecules, or ions). One mole, or 6.022 x 1023 molecules, is equal to one gram's worth of any given substance's molecular mass. Thus, a mole of oxygen (O2) weighs 32 kilos and has a molecular mass of 6.022 1023.

12 grams of pure carbon-12 weigh exactly one mole, or 6.022 x 1023 atoms, making one mole equivalent to 12 grams of pure carbon-12. • Avogadro's Number refers to the quantity of particles contained in one mole (6.0221421x1023).

Learn more about molecular here-

https://brainly.com/question/14614762

#SPJ4

Draw the structure of maleic acid ((Z)-but-2-enedioic acid).

Answers

The structure of maleic acid is H2C=CH2 with a double bond between two hydrogen atoms and a double bond between the second and third carbon atoms in the three carbon chain.

H3C-C=C-COOH

\ /

H2C=CH2

1. Draw a three carbon chain with a double bond between the second and third carbon atoms

H3C-C=C-COOH

2. Add two hydrogen atoms to the second carbon atom

H3C-C=CH2-COOH

3. Draw a double bond between the two hydrogen atoms

H2C=CH2-COOH

H2C=CH2

      \  /

H3C-C=C-COOH

The structure of maleic acid is H2C=CH2 with a double bond between two hydrogen atoms and a double bond between the second and third carbon atoms in the three carbon chain.

learn more about maleic acid here

https://brainly.com/question/14670113

#SPJ4

You start with two reactants. One reactant has a mass of 13.6 grams and the other reactant has a mass of 72.9 grams. 22 grams of gas are released during the reaction. What is the total mass of all of the products formed in this reaction?

Answers

Answer:

64.5g

Explanation:

First you add the mass of reactant 1 and reactant 2, then you simply subtract the amount of gas released from your answer, and that would be the total mass of ALL the products formed.

My work:

13.6g + 72.9 = 86.5g

86.5g - 22g = 64.5g

Write the chemical symbols for three different atoms or atomic anions with 10 electrons

Answers

Answer:

          i)  Neon (Ne)

           ii)  Fluoride Ion (F⁻¹)

            iii)  Oxide Ion  (O⁻²)

Explanation:

                  Ions are those charged species which are either positively charged (by loosing electrons) called as cations or negatively charged (by gaining electrons) called as anions.

                 In given examples, Neon is a neutral atom which has an atomic number 10. It contains 10 electrons in its neutral state with the electronic configuration 1s², 2s², 2p⁶.

                 Fluorine atom has an atomic number of 9. Therefore, it contains 9 electrons in its neutral state with an electronic configuration of 1s², 2s², 2p⁵. When Fluorine atom gains one electron it gets 10 electrons with electronic configuration of 1s², 2s², 2p⁶.

                Oxygen atom has an atomic number of 8. Therefore, it contains 8 electrons in its neutral state with an electronic configuration of 1s², 2s², 2p⁴. When Oxygen atom gains two electron it gets 10 electrons with electronic configuration of 1s², 2s², 2p⁶ forming an Oxide Ion.

Look at the general chemical equation below. A B C Which situation best describes the effect of a limiting reactant

Answers

The situation that best describes the effect of a limiting reactant is that when there is not enough A reactant to react with whole B.

The limiting reactant, also known as the limiting reagent, is the reactant that is used first during a chemical reaction, hence restricting the amount of product that can be produced. The limiting reactant can be identified in a variety of methods ,but they all require employing mole ratios from the balanced chemical equation.

The theoretical yield is the maximum quantity of product possible given the limiting reactant. The quantity of product actually procured, or actual yield, is usually always less than the theoretical yield. The percentage yield used to describe the actual yield indicates what portion of the theoretical yield was attained.

In the equation there is only one situation which describes the effect of limiting reagent when there is not enough of A to react with whole B.

Learn more about limiting reactant

brainly.com/question/2948214

#SPJ4

Other Questions
Science and technology do more harm than good the severe form of erythema multiform, which involves widespread lesions that may appear in the oral cavity and on the eyes, genitalia, thoracic and abdominal regions is known as Make 3 past tense sentences using avoir in French Helpppp nowww plsss I really need help A closed tank contains pure nitrogen gas at a pressure of 855mmHg and a temperature of 26.3 C. What would the pressure beif the tank were heated to 1253 C? (pay attention to units) According to Richards is anything really a personal decision? Find the mean of the following numbers:803 3174144 what is roddys reoson for mobimg the doghouse soon after he overhears mothers telephone conversation What will be the linear expansion of a piece of wrought iron 8 feet long if its temp is raised 70 degrees F? Where is the x-intercept in a quadratic formula? What is the genotypic ratio of dihybrid cross of round yellow? Anyone that can name MVP's wwe finisher gets a free brainliest and thanks Derrick cut a square cake vertically to make two rectangle slices. Each rectangle had a perimeter of 51 inches. Find the area of the irregular figure below. In the figure below, ABCD is a square.Points are chosen on each pair of adjacent sides of ABCD to form 4 congruent right triangles, as shown below.What is the area of the shaded regions?A. 16B. 32C. 48D. 64E. 72 You have $100,000 to invest in a portfolio containing Stock X and Stock Y. Your goal is to create a portfolio that has an expected return of 12.7 percent. Stock X has an expected return of 11.4 percent and a beta of 1.25, and Stock Y has an expected return of 8.68 percent and a beta of .85. How much money will you invest in Stock Y? What is the beta of your portfolio? (2 pts) The definition of insanity is doing the same thing over and over and expecting different results. These words are usually credited to the acclaimed genius Albert Einstein. What do you think? Which of the following levels of organization is the least complex?a. Cellb. Organc. Tissued. Individual organism How does Accenture myNav Green Cloud Advisor integrate sustainability? Which point is a reflection of (-4, -3) across the y-axis?