The last step in the Dow process for the production of magnesium metal involves electrolysis of molten MgCl₂.(a) Why isn’t the electrolysis carried out with aqueous MgCl? What are the products of this aqueous electrolysis?

The moles of ammonia needed to produce 1.3 mole of water is 0.84 mol.

balance chemical equation for the reaction

\(4NH_{3}+5O_{2}- > 4NO +6H_{2}O\)

In chemistry, stoichiometry is the measurement of the ratios in which different substances or elements interact. The laws of conservation of mass, energy, and weights or volumes serve as the foundation for the rules used to determine stoichiometric relationships.

stoichiometric moles of ammonia reacting = \(\frac{moles}{stoichiometry}\)

stoichiometric moles of water reacting = \(\frac{1.3}{6} =0.21\)

0.21 stoichiometric moles of water is given by 0.21 stoichiometric moles of water

so moles of ammonia will form = stoichiometric moles * stoichiometry

moles of ammonia will form = 0.21 * 4  = 0.84 mol

so moles of ammonia produced by reaction = 0.84 mol

Learn more about moles

brainly.com/question/26416088

#SPJ4

The concentration of total suspended solids in the stream during the spring is 45.833 mg/l.

What is total suspended solids?

Total suspended solids, or TSS for short, are waterborne particles larger than 2 microns. On the other hand, every particle less than 2 microns is referred to be a completely dissolved solid (TDS). Algae and bacteria can also be categorized as total suspended solids (TSS), however inorganic materials make up the majority of TSS.

Sand, silt, and plankton are all examples of TSS because they are all floating or "suspended" in water. The organic particles released into the water when some water sources are polluted by dead plants or animals are typically suspended solids. While some silt will sink to the bottom of a body of water, other TSS may float to the top or hang suspended somewhere in the middle. TSS has an impact on water clarity, hence the more TSS is present in a water supply, the less clear it will be.

Given in the question,

flow rate of stream (Q1) = 100 cfs

concentration of suspended solids (S1) = mg/l

During spring time,

concentration of TSS (S2) = 250 mg/l

flow rate of stream (Q2) = 20 cfs

The concentration of a mixture is calculated by:

\(C = \frac{Q_1 S_1 + Q_2 S_2}{Q_1 + Q_2}\)

\(C = \frac{100 \times 5 + 20 \times 250}{100+20}\)

\(C = 45.833\) mg/l

Therefore, concentration is 45.833 mg/l

To know more about TSS, go to link

https://brainly.com/question/13494609

#SPJ4

Answer:

stoichiometry

Explanation:

The study of quantitative relationships between the amounts of reactants used and the amounts of products formed by a chemical reaction is called stoichiometry.

Stoichiometry is a branch of chemistry that deals with the quantitative relationships between the reactants and products in a chemical reaction. It is based on the law of conservation of mass, which states that mass is neither created nor destroyed in a chemical reaction.

The study of stoichiometry is important because it allows us to predict how much of a product will be formed in a chemical reaction. This information can be used to design and scale up chemical reactions and to determine the efficiency of a chemical process.

Answer: 7.5 mol

Explanation: yes

0.83moles of Sulfur is required to react with 2.5 moles of sulfur dioxide. This can be answered on the basis of Concept of stoichiometry. The correct option is option D

Stoichiometry is a part of chemistry that help us in making relationship between reactant and product from quantitative aspects. The total mass of the molecule on reactant side must be equal to the total mass of molecule on the product side.

For our question the balanced equation is

SO₂+ 2H₂S → 2H₂O + 3S

The mole ratio of sulfur dioxide to Sulfur is 1:3, means 1 part of sulfur dioxide will give 3 parts of sulfur.

Moles of sulfur dioxide=3×Moles of sulfur

2.5moles÷3=Moles of sulfur

0.83moles =Moles of sulfur

Thus the moles of Sulfur to react with sulfur dioxide is 0.83moles. Option d is correct option.

To learn more about stoichiometry, here:

https://brainly.com/question/28780091

#SPJ2

Answer:

A student is drinking a cup of hot chocolate as they sit by a campfire on a chilly evening. They know that the cup of hot chocolate transfers thermal energy to the surrounding air. The heated air over their cup of hot chocolate expands and rises and is replaced by cooler, denser air.

This method of energy transfer is

Explanation:

Answer:

radiation

Explanation:

radiation is when an existing heat source spreads heat to its surroundings

Answer:

Solubility

Explanation:

Solubility is the only thing that you can hold in your hands and touch (you can't hold reactivity or flammability). Physical = you can touch and hold it

Answer:

B. the particles in the surroundings move faster and have increased entropy

Explanation:

An exothermic process releases heat, causing the temperatures of the surroundings to increase. Entropy increases as temperature increases. Since an exothermic reaction releases heat to the surroundings, molecules in the surroundings will begin to move faster because they will absorb more energy, which increases their kinetic energy. An increase in temperatures means that the particles of the surroundings have greater kinetic energy. The faster moving particals have more disorder than particles that are moving more slowly at a lower temperature. Entropy is interpreted as the degree of disorder/randomness.

Answer:

See explanation

Explanation:

When we are comparing the effect of H3O^+ on the precipitation of a salt of a weak acid such as CaC2O4(s) and that of a strong acid such as AgCl(s) or CaSO4(s), we discover that H3O^+ has more effect on the precipitation of the salt of a weak acid.

This is because, anions of the weak acid combine with H^+ from H3O^+ thereby decreasing the concentration of the anion of the salt of the weak acid and increasing the solubility of the precipitate.

The calculated density (12.58 g/mL) is very close to the density of silver (12.59 g/mL). Therefore, the metal is likely to be silver.

To calculate the density of the metal with mass = 33.03 g and volume = 2.624 mL, you can use the formula:

Density = Mass / Volume

Step 1: Plug in the given values into the formula:
Density = 33.03 g / 2.624 mL

Step 2: Calculate the density:
Density ≈ 12.58 g/mL

Now, compare the calculated density with the given densities of the coinage metals:
- Copper = 8.95 g/mL
- Silver = 12.59 g/mL
- Gold = 19.32 g/mL

To know more about the density refer here :

https://brainly.com/question/29009519#

#SPJ11

The given statement "inorganic chemicals can exist only as the elemental form shown in the periodic table". is False. Inorganic chemicals can exist in various forms, including as compounds with other elements.

The periodic table lists all known elements, including inorganic elements, but it does not imply that inorganic chemicals exist only as elemental forms. Inorganic compounds can be made up of two or more elements, including metals and nonmetals, and can be formed through various chemical reactions.

Examples of inorganic compounds include water (H₂O), sodium chloride (NaCl), and carbon dioxide (CO₂), among many others. Inorganic chemistry is the study of these compounds, their properties, and their reactions.

To know more about inorganic chemicals refer here:

https://brainly.com/question/28786378#

#SPJ11

In Newton's 2nd law, written in terms of force, mass and acceleration, m stands for the mass in the original Newton's work, i.e. the quantity of the substance which makes up a material body.

Have a great day/ night hope this helped out <33

1.For the buffer solution containing HCHO2 and KCHO2:

First, we can calculate the moles of HCHO2 and KCHO2 present in the solution:

moles of HCHO2 = (0.225 M) x (0.2800 L) = 0.063 moles

moles of KCHO2 = (0.300 M) x (0.2800 L) = 0.084 moles

Since NaOH is a strong base, it will react completely with the weak acid, HCHO2, to form the conjugate base, CHO2-. We can use the balanced chemical equation to determine the moles of HCHO2 that will react with NaOH:

HCHO2 + NaOH -> H2O + NaCHO2

1 mole of HCHO2 reacts with 1 mole of NaOH. Therefore, since we are adding 0.028 mol of NaOH, 0.028 mol of HCHO2 will react.

The amount of HCHO2 and CHO2- in the buffer solution after the reaction can be calculated as follows:

moles of HCHO2 = 0.063 - 0.028 = 0.035 moles

moles of CHO2- = 0.084 + 0.028 = 0.112 moles

Next, we can calculate the concentration of HCHO2 and CHO2- in the buffer solution after the reaction:

[ HCHO2 ] = moles of HCHO2 / volume of solution = 0.035 moles / 0.2800 L = 0.125 M

[ CHO2- ] = moles of CHO2- / volume of solution = 0.112 moles / 0.2800 L = 0.400 M

Using the Henderson-Hasselbalch equation, we can calculate the initial pH of the buffer solution:

pH = pKa + log([ CHO2- ] / [ HCHO2 ])

pH = -log(1.8x10^-4) + log(0.400 / 0.125)

pH = 3.91

Finally, we can calculate the final pH after the addition of NaOH. The NaOH reacts with HCHO2 to form CHO2-, which will increase the concentration of the conjugate base and decrease the concentration of the weak acid. The new concentrations of HCHO2 and CHO2- are:

[ HCHO2 ] = 0.035 moles / 0.2800 L = 0.125 M

[ CHO2- ] = 0.140 moles / 0.2800 L = 0.500 M

Using the Henderson-Hasselbalch equation again, we can calculate the final pH of the solution:

pH = pKa + log([ CHO2- ] / [ HCHO2 ])

pH = -log(1.8x10^-4) + log(0.500 / 0.125)

pH = 4.32

Therefore, the initial pH of the buffer solution is 3.91, and the final pH after the addition of NaOH is 4.32.

2.For the buffer solution containing CH3CH2NH2 and CH3CH2NH3Cl:

First, we can calculate the moles of CH3CH2NH2 and CH3CH2NH3Cl present in the solution:

moles of CH3CH2NH2 = (0.295 M) x (0.2800 L) = 0.0826 moles

moles of CH3CH2NH3Cl = (0.225 M) x (0.2800 L

Regenerate response

The brightest star in our sky is Sirius. We can infer so because it has the smallest apparent magnitude (most negative).

The correct option is (a) Sirius's dog collar

Learn more about the Sirius star with the help of the given link:

https://brainly.com/question/5415607

#SPJ13

The gram formula mass of the product, PCl₃, is 137.5 g.

The amount of a compound that has the same mass in grams as the formula mass in an atomic mass unit is said to have the compound's gram formula mass. It is also known as the molar mass.

Every element's atom has a characteristic mass, and each compound's molecule has a characteristic mass determined by the compound's formula.

The gram formula mass of the product PCl₃ is calculated below:

The atomic mass of P = 31 g

The atomic mass of Cl = 35.5 g

The gram formula mass of PCl₃ = 31 + 35.5 * 3

The gram formula mass of PCl₃ = 137.5 g

Learn more about gram formula mass at: https://brainly.com/question/490195

#SPJ1

The scientific statement is

D. There is life on some other planet in the universe aside from Earth.

A scientific statement is a statement that is based on empirical evidence, logical reasoning, and the scientific method. It is a claim or proposition that can be tested, observed, or measured, and is subject to scrutiny and verification.

Scientific statements are characterized by objectivity, reliance on evidence, and the potential for falsifiability or validation through experiments or further investigation. these statements aim to describe, explain, or predict phenomena in the natural world and are an essential part of scientific inquiry and the advancement of knowledge.

Learn more about scientific statement at

https://brainly.com/question/19894291

#SPJ1

complete question

Which sentence is a scientific statement?

A.

Food cooked in ceramic pots has a better aroma than food cooked in copper pots.

B.

A tall glass of water tastes better with a lemon wedge and ice cubes.

C.

Today, there are more viewers watching baseball than ice hockey on television.

D.

There is life on some other planet in the universe aside from Earth

Molecular sieves will lose their functionality if left open for a long period because they will absorb the water in the air. A material is employed, it must be able to fulfil its purpose or primary functions effectively.

In the experiment, we investigate the effect of leaving molecular sieves uncapped for a prolonged period of time on their functioning. The molecular sieves would absorb the water in the air, hence reducing their ability to absorb.

A substance with uniformly sized pores primary functions called a molecular sieve. Due to the same size of these pore widths to small molecules are primary functions , larger molecules cannot enter or be adsorbed but smaller molecules can.

Learn more about molecular sieves here

https://brainly.com/question/15134917

#SPJ4

The inorganic substance with the chemical formula BaSO4 is barium sulfate (or sulphate). It is a tasteless, crystalline white substance that is insoluble in water.

A barium cation and a sulfate anion are the two elements that make up barium sulfate. There are four oxygen atoms joined to the sulfur. A sulfate salt of barium, known as BaSO4, is present in the mineral barite. It is a white crystalline substance that is soluble in strong acids but insoluble in water and alcohol.

Elements include both barium and bromine. Barium is a metal belonging to Group 2 of the modern periodic table, and bromine is a non-metal belonging to Group 17 (halogen).

To know more about chemical formula visit:-

https://brainly.com/question/29031056

#SPJ1

Answer: C because gases in the atmosphere are less dense

Explanation:

The binding of the amino acid in aminoacyl-tRNA involves the formation of an ester bond.  Option b

Aminoacyl-tRNA is a complex molecule that plays a crucial role in protein synthesis. It consists of a tRNA molecule covalently linked to an amino acid. The amino acid is attached to the 3' end of the tRNA molecule through an ester bond.

An ester bond is formed between the carboxyl group (-COOH) of the amino acid and the hydroxyl group (-OH) of the ribose sugar at the 3' end of the tRNA molecule. This ester bond is also referred to as an ester linkage. The formation of the ester bond is catalyzed by the enzyme aminoacyl-tRNA synthetase.

The ester bond in aminoacyl-tRNA is essential for protein synthesis. During translation, the aminoacyl-tRNA molecule carries the specific amino acid to the ribosome, where it is incorporated into the growing polypeptide chain. The ester bond is later hydrolyzed, releasing the amino acid for further use in protein synthesis.

In summary, the binding of the amino acid in aminoacyl-tRNA involves the formation of an ester bond between the carboxyl group of the amino acid and the hydroxyl group of the ribose sugar in the tRNA molecule.

Option b

For more such question on amino acid visit:

https://brainly.com/question/30265108

#SPJ8

The mass, in grams, of H₂O is produced in the decomposition of ammonium nitrate is 72.06 grams.

Mass of any substance will be calculated by using their moles as:

n = W/M, where

W = required mass

M = molar mass

Given chemical reaction is:

NH₄NO₃ → N₂O + 2H₂O

Moles of 160.1 g of NH₄NO₃ = 160.1g / 80.03g/mol = 2moles

From the stoichiometry of the reaction, it is clear that:

1 moles of NH₄NO₃ = produce 2 moles of H₂O

2 moles of NH₄NO₃ = produce 2×2=4 moles of H₂O

Mass of H₂O will be calculated as:

W = (4mol)(18.01 g/mol) = 72.04 grams (72.06 approx)

Hence, option (4) is correct.

To know more about moles, visit the below link:

https://brainly.com/question/15373263

Answer:

51.79g Li₃P.

Explanation:

Li has a molar mass of 6.94 g (since there are 3, you multiply it 3 times) and P has a molar mass of 30.97 g. 6.94(3) + 30.97 = 51.79g.

Answer:

- 24549091

Explanation:

Using NAD and NADH reaction for the oxidation of methanol CH₃OH to formaldehyde, in which NAD is the oxidizing agent and then alcohol oxidase was crystallized after purification by ammonium sulfate precipitation

Oxidation means a process in which a chemical substance changes because of the addition of oxygen

Methanol was oxidized to formaldehyde by an alcohol oxidase and the reaction are

CH₃OH+O₂ → HCOH + H₂O₂

And the cofactor found in two form of cell and NAD is an oxidizing agent and it accept the electron of other molecule and reduced and this reaction is also with H⁺ form NADH which can be used as the reducing agent to donate electron and this reaction gives alcohol oxidase was crystallized after purification by ammonium sulfate precipitation

Know more about oxidation

https://brainly.com/question/20389059

#SPJ1

Answer:

5.77x10^-7 m or 577 nm (nanometers)

Explanation:

The wavelength, λ, and frequency, ν, of light are described by the equation:

c = λν

where c is the speed of light.  

c = 3.0x10^8 m/s

v = 5.2x10^14

λ = c/v

λ = (3.0x10^8 m/s)/(5.2x10^14) = 5.77x10^-7 m

since 1 m = 10^9nm, we can express this as 577 nm (nanometers)

577 nm.  This is in the yellow light span of wavelengths.

The molecular formula if the molar mass is 92 g/mol if the empirical formula is nitrogen dioxide then the molecular formula is N₂O₄.

An empirical formula is a simple expression of the relative numbers of atoms of each element present in a compound. It is typically written as a chemical formula in the form of a whole number ratio, such as CH2O for glucose, denoting that there are two atoms of hydrogen for every one atom of carbon and one atom of oxygen. Empirical formulas are not the same as true chemical formulas, which also list the arrangement of atoms in a compound.

Molecular formula = (empirical formula) × \(\frac{molar mass}{empirical formula mass}\)

Empirical formula for nitrogen dioxide is NO₂

Empirical formula mass = 2×(16)+32 = 64

Molecular Formula = NO₂ x (\(\frac{92}{64}\)) = NO₂ x 1.4375 = \(N_1_._4_3_7_5O_2_._8_7_5\)

To know more about empirical formula, visit:

https://brainly.com/question/14044066

#SPJ1

Answer

27.59 is the answer

Answer:

I love Science anyways

The ans is in the picture with the  steps how i got it

(hope this helps can i plz have brainlist :D hehe)

Explanation:

The statement that is not correct about carboxylic acids is (b) "carboxylic acids do not form intermolecular h-bonding with water." Carboxylic acids do form intermolecular H-bonding with water.

This is due to the polar nature of carboxylic acids, which results in the formation of H-bonds between the oxygen atoms of carboxylic acid molecules and the hydrogen atoms of water molecules. These H-bonds increase the solubility of carboxylic acids in water.

The presence of the carboxyl group (-COOH) in carboxylic acids also facilitates the formation of H-bonds between adjacent carboxylic acid molecules. This results in the formation of dimers and other aggregates in the solid state. Overall, carboxylic acids are polar molecules that are capable of forming intermolecular H-bonds with both water and other carboxylic acid molecules.

To know more about the carboxyl group refer here :

https://brainly.com/question/14769767#

#SPJ11

4.39×10²³ atoms are present in  0.73 mol of Bromine. Bromine exists in a liquid form of state of matter.

Bromine was found in 1826 in the dregs (bitterns) from the production of sea salt in Montpellier by the French scientist Antoine-Jérôme Balard.

By running chlorine through with an aqueous phase of the leftovers containing magnesium bromide, he was able to release the element. The substance was distillated with manganese dioxide as well as sulfuric acid, resulting in crimson vapours that condensed into a black liquid which is bromine.

number of atom = mole ×6.022×10²³

                           = 0.73 ×6.022×10²³

                          =4.39×10²³

Therefore, 4.39×10²³ atoms are present in  0.73 mol of Bromine.

To learn more about bromine, here:

https://brainly.com/question/1952132

#SPJ1

The most likely true statement about a restriction enzyme recognizing the sequence 5ʹ-gtcatgac-3ʹ and making staggered cuts is: "The restriction enzyme produces fragments with sticky ends".

When a restriction enzyme recognizes a specific DNA sequence, it cuts the DNA at or near that sequence. Staggered cuts refer to cuts made at different positions on the two DNA strands, resulting in fragments with overhanging ends. These overhanging ends are often referred to as sticky ends because they can base pair with complementary sequences.

In the given sequence 5ʹ-gtcatgac-3ʹ, the restriction enzyme would recognize and cut between the G and the T bases, resulting in staggered cuts. This would produce fragments with complementary overhangs: 5ʹ-GTCATG-3ʹ and 5ʹ-GTCA-3ʹ. These overhanging ends can then bind or anneal with complementary sequences during DNA manipulation, such as in cloning or DNA ligation reactions.

Learn more about restriction enzymes at https://brainly.com/question/15278286

#SPJ11