does the rate of an enzyme catalyzed reaction increase exponentially if the substrate concentration increases?

Answer:

5.23×10⁺⁹ kg/m³

Explanation:

Given data:

Density of solid = 5.23×10⁻⁶ Kg/mm³

Density of solid in Kg/m³

Solution:

Density:

Density is equal to the mass of substance divided by its volume.

Units:

SI unit of density is Kg/m3.

Other units are given below,

g/cm3, g/mL , kg/L

Formula:

D=m/v

D= density

m=mass

V=volume

Symbol:

The symbol used for density is called rho. It is represented by ρ. However letter D can also be used to represent the density

In order to covert Kg/mm³ into  Kg/m³ we will divide the value by 10⁺⁹ because 1 m³ = 1000000000 mm³

5.23×10⁻⁶ Kg/mm³ / 10⁺⁹

5.23×10⁺⁹ kg/m³

The empirical formula : C₁₁O₁₄O₃

The assumption of the compound consists of C, H, and O

mass of C in CO₂ =

\(\tt \dfrac{12}{44}\times 2.492=0.680~g\)

mass of H in H₂O =

\(\tt \dfrac{2.1}{18}\times 0.6495=0.072~g\)

mass of O :

mass sample-(mass C + mass H)

\(\tt 1-(0.68+0.072)=0.248`g\)

mol of  C :

\(\tt \dfrac{0.68}{12}=0.056\)

mol of H :

\(\tt \dfrac{0.072}{1}=0.072\)

mol of O :

\(\tt \dfrac{0.248}{16}=0.0155\)

divide by 0.0155(the lowest ratio)

C : H : O ⇒

\(\tt \dfrac{0.056}{0.0155}\div \dfrac{0.072}{0.0155}\div \dfrac{0.0155}{0.0155}=3.6\div 4.6\div 1\\\\\dfrac{11}{3}\div \dfrac{14}{3}\div \dfrac{3}{3}=11:14:3\)

A set of particles (atoms or molecules) that are constantly moving at random makes up a gas sample, according to the kinetic energy of a  molecular theory.

Moreover, these gas particles' average kinetic energy solely depends on the temperature of the gas. With an increase in gas temperature, the average kinetic energy rises (this tells that the fifth statement is true). Despite the fact that certain gas molecules will always be travelling more quickly than others, the gas can still be represented by its average kinetic energy. Because kinetic energy is proportional to the square of the speed, the second claim—that the average speed of gas molecules rises with rising temperature—is derived from this.

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Answer:

C₂H₄ + 3O₂  →    2CO₂  + 2H₂O

Explanation:

According to the law of conservation mass, mass can neither be created nor destroyed in a chemical equation.

This law was given by French chemist  Antoine Lavoisier in 1789. According to this law mass of reactant and mass of product must be equal, because masses are not created or destroyed in a chemical reaction.

3H₂O   →  3H₂ + 3O₂

This equation do not follow  the law of conservation of mass because there are more oxygen atoms on right side so mass is not conserved.

C₂H₄ + 3O₂  →    2CO₂  + 2H₂O

This equation follow the law of conservation of mass because there are equal number of atoms of all elements on both side of equation.

C  + 4H₂   →   CH₄

This equation do not follow the law of conservation of mass because there are more hydrogen atoms on left side of equation so mass is not conserved.

2Na  + Cl    →  NaCl

This equation also do not follow the law of conservation of mass because there are more sodium atoms on left side of equation so mass is not conserved.

The particle that makes the atom an unstable isotope is the neutron. When there is an excess or a deficiency of neutrons in an atom's nucleus, it becomes an unstable isotope.

Unstable isotopes are isotopes that decay and emit radiation until they reach a stable state. They are also known as radioactive isotopes. The radioactive isotopes are unstable and have an unpredictable lifespan because they have an unstable ratio of neutrons to protons. This excess of neutrons in the nucleus results in a greater electrostatic repulsion between protons, causing instability and eventually decay.Neutrons are the particles that are responsible for making atoms unstable isotopes. The excess or deficiency of neutrons in an atom's nucleus leads to an unstable state and eventually decay. Radioactive isotopes are important for various practical applications such as nuclear power, radiography, and cancer treatment.

Therefore, neutrons makes the atom an unstable isotope. The decay of unstable isotopes can be used for many practical applications such as nuclear power, radiography, and cancer treatment.

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If you added 0.5 g of sample 1 instead of 2.0 g, the freezing point temperature of the solution would decrease.

When a solute is added to a solvent, it disrupts the formation of the solvent's crystal lattice structure, lowering the freezing point of the solution. The extent to which the freezing point is lowered depends on the concentration of the solute particles in the solution. In this case, by reducing the amount of sample 1 from 2.0 g to 0.5 g, the concentration of solute particles in the solution would decrease.

Since the freezing point depression is directly proportional to the concentration of solute particles, a decrease in the amount of sample 1 would result in a smaller decrease in the freezing point temperature compared to if 2.0 g were added. In other words, the solution would experience a less significant decrease in freezing point temperature with only 0.5 g of sample 1.

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Answer:

ductility

Explanation:

It is a mechanical property

The solution with the greatest boiling-point elevation among the given options is Mg(NO₃)₂.

The boiling-point elevation of a solution depends on the concentration of solute particles. In this case, we have three solutions: Mg(NO₃)₂, NaNO₃, and C₂H₄(OH)₂.

Mg(NO₃)₂ dissociates into three ions: Mg²⁺ and two NO₃⁻ ions. NaNO₃ dissociates into two ions: Na⁺ and NO₃⁻. C₂H₄(OH)₂ does not dissociate, so it remains as one molecule.

Since the boiling-point elevation is directly proportional to the number of solute particles, Mg(NO₃)₂, with three ions per formula unit, will have the greatest boiling-point elevation. NaNO₃ has two ions per formula unit, and C₂H₄(OH)₂ has no ionization, resulting in fewer solute particles and lower boiling-point elevation compared to Mg(NO₃)₂.

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The new pressure of the carbon dioxide gas after heating is closest to 1 atm.

To determine the new pressure of the carbon dioxide gas after heating, we can use the ideal gas law equation:

PV = nRT

Where:

P = pressure

V = volume (constant in this case)

n = number of moles of gas

R = ideal gas constant

T = temperature

Since the volume is constant, we can rewrite the ideal gas law equation as:

P₁/T₁ = P₂/T₂

Where:

P₁ = initial pressure

T₁ = initial temperature

P₂ = final pressure (to be determined)

T₂ = final temperature

Given the initial conditions:

P₁ = 0.5 atm

T₁ = 200 K

And the final temperature:

T₂ = 400 K

We can rearrange the equation to solve for P₂:

P₂ = (P₁ × T₂) / T₁

Plugging in the values, we get:

P₂ = (0.5 atm × 400 K) / 200 K

P₂ = 1 atm

Therefore, the new pressure of the carbon dioxide gas after heating is closest to 1 atm.

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The volume of 4.2 M HCl is 0.476 L . The answer is not one of the options provided. However, we can see that option 6 (0.085 L) is the closest.

To solve this problem, we need to use stoichiometry. First, we balance the equation:
2 HCl + Na2CO3 → 2 NaCl + H2O + CO2
This tells us that two moles of HCl are required to produce one mole of CO2. We know that 8 L of CO2 are collected at STP, which means that we have one mole of CO2 (since at STP, one mole of any gas occupies 22.4 L). Therefore, we need two moles of HCl.
Now we can use the molarity of the HCl to calculate the volume needed. The formula for molarity is:
Molarity = moles of solute / liters of solution
We rearrange this formula to solve for the volume:
Liters of solution = moles of solute / molarity
Plugging in the numbers, we get:
Liters of solution = 2 moles / 4.2 M = 0.476 L
Therefore, the answer is not one of the options provided. However, we can see that option 6 (0.085 L) is the closest. This suggests that there may have been an error in the calculation, perhaps a misplaced decimal point. We could double check our work to be sure.
In any case, the key concepts used in this problem are stoichiometry and the formula for molarity. It's important to pay attention to units and to be comfortable with these concepts in order to solve problems like this one.

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Answer:

Electrolytes, particularly sodium, help the body maintain normal fluid levels in the fluid compartments because the amount of fluid a compartment contains depends on the amount (concentration) of electrolytes in it. If the electrolyte concentration is high, fluid moves into that compartment (a process called osmosis).

Explanation:

Answer:

Electrolytes are minerals in your body that have an electric charge. They are in your blood, urine, tissues, and other body fluids. Electrolytes are important because they help

Balance the amount of water in your body

Balance your body's acid/base (pH) level

Move nutrients into your cells

Move wastes out of your cells

Make sure that your nerves, muscles, the heart, and the brain work the way they should

Sodium, calcium, potassium, chloride, phosphate, and magnesium are all electrolytes. You get them from the foods you eat and the fluids you drink.

The levels of electrolytes in your body can become too low or too high. This can happen when the amount of water in your body changes. The amount of water that you take in should equal the amount you lose. If something upsets this balance, you may have too little water (dehydration) or too much water (overhydration). Some medicines, vomiting, diarrhea, sweating, and liver or kidney problems can all upset your water balance.

Treatment helps you to manage the imbalance. It also involves identifying and treating what caused the imbalance.

Absolute zero is an idea in thermodynamics that describes the lowest energy system.

Thermodynamics

Thermodynamics is the study of thermal energy and heat. One of the most important ideas in thermodynamics is entropy. Entropy is defined as the chaos within a system. Chaos is the movement or different orientations of molecules in a system. Entropy is related to temperature; the higher the temperature, the higher the entropy. High entropy means there is a large amount of chaos in a system, while low entropy is low chaos.

Absolute zero

Absolute zero occurs when the temperature of a system is 0 kelvin or -273.15 °C. Zero kelvin is the theoretical temperature in which entropy equals 0. This means that there is no movement or energy within a system. Absolute zero is the lowest energy a system can possibly have.

When equal masses of ch4(g) and o2(g) are placed in a container, exerting a total pressure of 600 torrs, then the partial pressure of ch4(g) will be 300torr

Let, x gm o2 and ch4 are present

Given,

Total Pressure = 600torr

Number of moles of o2 = x/16

Number of moles of Ch4 = x/16

According to the Daltons law of partial pressure,

Pa =Xa*Ptotal

Xa is the mole fraction of a

Xch4 =\(\frac{x/16}{x/16 +x/16}\)

         =1/2 = 0.5

Pch4 = 0.5×600 = 300torr

Therefore the partial pressure of ch4 will be 300 torr when a total pressure of 600 torr is applied to the mixture.

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According to the concept of stoichiometry and limiting reactant , the limiting reactant for the given reaction is aluminium as without it formation of product is not possible.

Stoichiometry is the determination of proportions of elements or compounds in a chemical reaction. The related relations are based on law of conservation of mass and law of combining weights and volumes.

Stoichiometry is used in quantitative analysis for measuring concentrations of substances present in the sample.It is an important concept while balancing chemical equations.

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The order of measurements from the smallest to largest will be 0.0m < 2 × 10⁻⁵ m < 1 × 10⁻⁴ m < 3 × 10⁻⁶ km < 4.0 × 10²mm <  1.0 m.

When converting the values from kilometers to meters, we multiply the value with 1000 or 10³ and when converting the values from millimeters to meters, we multiply the value by 0.001 or 10⁻³.
1.0 × 10⁻⁴ m = 0.0001 m

2.0 × 10⁻⁵ m = 0.00002 m

3.0 × 10⁻⁶ km = 0.000003 × 1000 = 0.003 m

4.0 × 10² mm = 400 × 0.001 = 0.4 m

0.0 m

1.0 m

The correct order of measurements from the smallest to largest will be 0.0m < 2 × 10⁻⁵ m < 1 × 10⁻⁴ m < 3 × 10⁻⁶ km < 4.0 × 10²mm <  1.0 m.

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The ∆G° for the dissolution of AgCl solid is 55.7 kJ/mol.

The gibbs free energy is termed as thermodynamic quantity which is equal to the enthalpy (of a system or process) subtracted by the product of the entropy and the absolute temperature.

The gibbs free energy of the reaction is given by:

∆G°(rxn) =sum of ([∆G°] products)- sum of ( [∆ G°] reactants)

Reaction can be given as:

AgCl(S) » Ag+ (aq) + Cl- (aq)

Gibbs free energy of silver ions = ∆G°f, (Ag+) = 77.1kJ/mol

Gibbs free energy of formation of chloride ions = ∆G°f, (Cl-)= -131. 2kJ/mol

Gibbs free energy of formation of silver chloride solid = ∆ G°f, (AgCl) = - 109.8kJ/mol

The gibbs free energy of the reaction of dissolution of AgCl) :∆ G°rxn:

∆G°rxn = (77.1kJ/mol) – (- 109.8kJ/mol)

55.7kJ/mol

Thus, we found that the ∆G° for the dissolution of AgCL solid is 55.7 kJ/mol.

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The correct answer is 1.776 atm, which is the rounded value of the conversion from 1350 mmHg to atm.

To convert 1350 mmHg to atm, you need to use the conversion factor between millimeters of mercury (mmHg) and atmospheres (atm). The conversion factor is 1 atm = 760 mmHg.

To convert mmHg to atm, divide the value in mmHg by 760:

1350 mmHg / 760 mmHg/atm ≈ 1.776 atm

Therefore, 1350 mmHg is approximately equal to 1.776 atm.

It's important to note that the conversion factor of 1 atm = 760 mmHg is based on the definition of atmospheric pressure at sea level and at a specific temperature. The actual conversion may vary slightly depending on atmospheric conditions.

So, the correct answer is 1.776 atm, which is the rounded value of the conversion from 1350 mmHg to atm.

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1. The ionic bond and covalent bond are distinguished from each other based on the way the atoms are attached to each other. Ionic bonds are formed when one or more electrons are transferred from one atom to another, resulting in a cation and an anion attracting each other to form an ionic bond. Ionic bonds are a result of electrostatic attraction between ions with opposite charges. Covalent bonds are formed when atoms share one or more pairs of electrons to achieve stable electronic configurations. Covalent bonds form when two or more atoms share electrons in order to achieve the stable electron configuration of noble gases. In covalent bonding, the electrons are shared between atoms, not transferred.

2. Density is defined as mass per unit volume. The density of sugar in g/cm³ is obtained by dividing its mass by its volume.

Mass of sugar = 500gVolume of sugar = 0.315L

Using the formula for density, we have

Density = Mass/Volume= 500g/0.315

L= 1587.30 g/L1

L = 1000 mL1 mL = 1 cm³

Density = 1587.30 g/L × (1 mL/1 cm³)

Density = 1.5873 g/cm³, to 4 significant figures

3. We can use the formula; Density = Mass/Volume, to calculate the mass of the block of silicon. Volume of block of silicon = 450 m³ Density of silicon = 2.336 g/cm³ Volume of block of silicon = 450 m³ = 4.5 × 10^8 cm³

We can substitute the values into the formula

Density = Mass/Volume

2.336 g/cm³ = Mass/4.5 × 10^8 cm³

Mass = 2.336 g/cm³ × 4.5 × 10^8 cm³

Mass = 1051200000 g or 1.05 × 10^9 g, to 2 significant figures.

Therefore, the mass of the block of silicon is 1.05 × 10^9 g.

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Answer:

30 % m/V o 23 % m/m

Explanation:

Al leer el problema y entender el enunciado como que se usó suficiente cantidad de agua para obtener 100 mL, con la masa de LiOH podemos determinar la concentración en m/V.

m/V es una concentración que establece la relación de gramos de soluto en 100 mL de solución.

Como los gramos de soluto son 30g, la concentración en m/V es

30/100 = 0.3 % m/V

Podemos también establecer concentración m/m la cual establece la relación como masa de soluto en 100 g de solución. Como el volumen de solución coincide con el de solvente, la masa de solución la podemos obtener sumando masa de solvente + masa de soluto

30 g + 100 g = 130 g

Si tomamos el agua como solvente puro, y por densidad (1 g/mL) la masa de agua es 100g

Así el % m/m lo calculamos como (masa de soluto/masa solucion) . 100

(30g  / 130g) . 100 = 23 % m/m

The Earth's surface is covered with an electron. To maintain the electron immobile, an electric field must always be applied downward.

A negative charge subatomic particle known as an electron can either be free or attached to an atom. One of the three main types nuclear particles within an atom is an ion that is bonded to it; some other two are neutrons and protons.

For dispassionately charged species, the concentration of electrons within an atom is similar to the atomic weight of an element. This indicates that an element has an equal amount of both protons and electrons. Consequently, oxygen contains 8 electrons.

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Answer:

(Ar, Xe, Rn) is the answer

According to the electronic configuration groups three to twelve have elements with more than one positive oxidation state.

Electronic configuration is defined as the distribution of electrons which are present in an atom or molecule in atomic or molecular orbitals.It describes how each electron moves independently in an orbital.

Knowledge of electronic configuration is necessary for understanding the structure of periodic table.It helps in understanding the chemical properties of elements.

Elements undergo chemical reactions in order to achieve stability. Main group elements obey the octet rule in their electronic configuration while the transition elements follow the 18 electron rule. Noble elements have valence shell complete in ground state and hence are said to be stable.

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it is c because canivores eat only meat while herbivores eat only plants so it is most likely a herbivore because it knows flavours that are good for it

A carnivore is more likely to have taste buds for umami flavors so it can taste the flavors of meat, while a herbivore is less likely because plants do not generally have umami flavors. Hence, option B is correct.

One of the five fundamental flavors is umami. It has been characterized as savory and is present in cooked meats and broths. Glutamates and nucleotides, which are plentiful in meat broths and fermented foods, trigger the taste receptors that allow us to detect umami.

Meats, shellfish, fish (including fish sauce and preserved fish like maldive fish, Katsuobushi, sardines, and anchovies), tomatoes, mushrooms, hydrolyzed vegetable protein, meat extract, yeast extract, and cheeses are examples of foods with a strong umami flavor.

Carnivores are eating meat while herbivores are plant eaters. Hence, slight chance for herbivores to taste the umami flavor. Therefore, option B is correct.

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The correct way to record this measurement using the correct number of significant figures is 6.35 cm.

Measurements are taken with a certain number of significant figures.

The number of significant figures in a measurement depends on the uncertainty in the measurement of the instrument.

The level of uncertainty in the measurement of a cm ruler is ±0.05 cm.

Considering the measurement of the nail:

The measurement of the nail is 6.3 ±0.05 cm.

Therefore, the correct way to record this measurement using the correct number of significant figures is 6.35 cm.

In conclusion, the number of significant figures in a measurement depends on the uncertainty in the instrument.

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A liquid medium is important for life because it enables the transport of nutrients, waste products, and other important molecules necessary for cellular processes.

In addition, a liquid medium allows for the dissolution and reaction of molecules, which is important for many biochemical processes that are essential for life. Water seems to be the most likely liquid medium for life because it has many unique and important properties. Water is also an excellent solvent, which is important for the transport and reaction of molecules necessary for life. Water has a polar nature, which enables it to form hydrogen bonds and support the structure of biomolecules like proteins and nucleic acids.

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Boric acid is a monoprotic and Lewis acid. B(OH)\(_3\) + H\(_2\)O ⇌ [BO(OH)\(_2\)]− + H\(_3\)O+ and HBO\(_2\) + H\(_2\)O ⇌ [BO\(_2\)]− + H\(_3\)O+ are the reactions for ionisation of boric acid.

In particular, orthoboric acid is a boron, oxygen, plus hydrogen chemical having the formula B(OH)3. Trihydroxidoboron, hydrogen orthoborate, and boracic acid are other names for it. It occurs naturally as the substance known as sassolite and is typically found as colourless crystals.

A white powder that dissolves in water. It is a weak acid that can react using alcohols to produce borate esters as well as a variety of borate anions and salts. Boric acid is a monoprotic and Lewis acid. B(OH)\(_3\) + H\(_2\)O ⇌ [BO(OH)\(_2\)]− + H\(_3\)O+ and HBO\(_2\) + H\(_2\)O ⇌ [BO\(_2\)]− + H\(_3\)O+ are the reactions for ionisation of boric acid.

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